1. abjure
35. homogeneous
69. photosynthesis
2. abrogate
36. hubris
70. plagiarize
3. abstemious
37. hypotenuse
71. plasma
4. acumen
38. impeach
72. polymer
5. antebellum
39. incognito
73. precipitous
6. auspicious
40. incontrovertible
74. quasar
7. belie
41. inculcate
75. quotidian
8. bellicose
42. infrastructure
76. recapitulate
9. bowdlerize
43. interpolate
77. reciprocal
10. chicanery
44. irony
78. reparation
11. chromosome
45. jejune
79. respiration
12. churlish
46. kinetic
80. sanguine
13. circumlocution
47. kowtow
81. soliloquy
14. circumnavigate
48. laissez
faire
82. subjugate
15. deciduous
49. lexicon
83. suffragist
16. deleterious
50. loquacious
84. supercilious
17. diffident
51. lugubrious
85. tautology
18. enervate
52. metamorphosis
86. taxonomy
19. enfranchise
53. mitosis
87. tectonic
20. epiphany
54. moiety
88. tempestuous
21. equinox
55. nanotechnology
89. thermodynamics
22. euro
56. nihilism
90. totalitarian
23. evanescent
57. nomenclature
91. unctuous
24. expurgate
58. nonsectarian
92. usurp
25. facetious
59. notarize
93. vacuous
26. fatuous
60. obsequious
94. vehement
27. feckless
61. oligarchy
95. vortex
28. fiduciary
62. omnipotent
96. winnow
29. filibuster
63. orthography
97. wrought
30. gamete
64. oxidize
98. xenophobe
31. gauche
65. parabola
99. yeoman
32. gerrymander
66. paradigm
100.ziggurat
33. hegemony
67. parameter
100 Words Every High School Graduate Should Know
1. abjure
2. abrogate
3. abstemious
4. acumen
5. antebellum
6. auspicious
7. belie
8. bellicose
9. bowdlerize
10. chicanery
11. chromosome
12. churlish
13. circumlocution
14. circumnavigate
15. deciduous
16. deleterious
17. diffident
18. enervate
19. enfranchise
20. epiphany
21. equinox
22. euro
23. evanescent
24. expurgate
25. facetious
26. fatuous
27. feckless
28. fiduciary
29. filibuster
30. gamete
31. gauche
32. gerrymander
33. hegemony
34. hemoglobin
34. hemoglobin
36. hubris
40. incontrovertible
41. inculcate
42. infrastructure
46. kinetic
47. kowtow
48. laissez
faire
49. lexicon
53. mitosis
56. nihilism
57. nomenclature
58. nonsectarian
59. notarize
64. oxidize
68. pecuniary
68. pecuniary
87. tectonic
90. totalitarian
91. unctuous
93. vacuous
94. vehement
95. vortex
96. winnowWORDS 1-10
abjure verb [ trans. ] formal
solemnly renounce (a belief, cause, or claim) : his refusal to abjure the
Catholic faith.
abrogate verb [ trans. ] formal
repeal or do away with (a law, right, or formal agreement) : a proposal to
abrogate temporarily the right to strike.
abstemious adjective
not self-indulgent, esp. when eating and drinking : “We only had a
bottle.” “Very abstemious of you.”
acumen noun
the ability to make good judgments and quick decisions, typically in a
particular domain : business acumen.
antebellum adjective [ attrib. ]
occurring or existing before a particular war, esp. the American Civil War
: the conventions of the antebellum South.
auspicious adjective
conducive to success; favorable : it was not the most auspicious moment to
hold an election.
• giving or being a sign of future success : they said it was an
auspicious moon—it was rising.
• archaic characterized by success; prosperous : he was respectful to
his auspicious customers.
belie verb ( -lying ) [ trans. ]
1 (of an appearance) fail to give a true notion or impression of
(something); disguise or contradict : his lively alert manner belied his
years.
2 fail to fulfill or justify (a claim or expectation); betray : the
notebooks belie Darwin's later recollection.
bellicose adjective
demonstrating aggression and willingness to fight : a group of bellicose
patriots.
bowdlerize verb [ trans. ]
remove material that is considered improper or offensive from (a text or
account), esp. with the result that it becomes weaker or less effective :
[as adj. ] (bowdlerized) a bowdlerized version of the story.
chicanery noun
the use of trickery to achieve a political, financial, or legal purpose :
an underhanded person who schemes corruption and political chicanery
behind closed doors.
WORDS 11-20
chromosome noun Biology
a threadlike structure of nucleic acids and protein found in the nucleus
of most living cells, carrying genetic information in the form of genes.
churlish adjective
rude in a mean-spirited and surly way : it seems churlish to complain.
circumlocution nounthe use of many words where fewer would do, esp. in a deliberate attempt
to be vague or evasive : his admission came after years of circumlocution
| he used a number of poetic circumlocutions.
circumnavigate verb [ trans. ]
sail all the way around (something, esp. the world).
• humorous go around or across (something) : he helped her to
circumnavigate a frozen puddle.
deciduous adjective
(of a tree or shrub) shedding its leaves annually. Often contrasted with
evergreen.
• informal (of a tree or shrub) broad-leaved.
• denoting the milk teeth of a mammal, which are shed after a time.
deleterious adjective
causing harm or damage : divorce is assumed to have deleterious effects on
children.
diffident adjective
modest or shy because of a lack of self-confidence : a diffident youth.
enervate verb [ trans. ]
cause (someone) to feel drained of energy or vitality; weaken.
enfranchise verb [ trans. ]
give the right to vote to : a proposal that foreigners should be
enfranchised for local elections.
• historical free (a slave).
epiphany noun ( pl. -nies)
the manifestation of Christ to the Gentiles as represented by the Magi
(Matthew 2:1–12).
• the festival commemorating this on January 6.
• a manifestation of a divine or supernatural being.
• a moment of sudden revelation or insight.
WORDS 21-30
equinox noun
the time or date (twice each year) at which the sun crosses the celestial
equator, when day and night are of equal length (about September 22 and
March 20).
euro noun ( pl. euros or euro) (also Euro)
the single European currency adopted in 1999 by eleven countries in the
European Union (Belgium, Austria, Finland, Spain, Ireland, Portugal,
Germany, France, Netherlands, Italy, Luxembourg) as an alternative
currency in noncash transactions. In 2002 it replaced the national
currencies of twelve member countries (the original eleven, plus Greece).
(Symb.: ₠)
evanescent adjective chiefly poetic/literary
soon passing out of sight, memory, or existence; quickly fading or
disappearing : a shimmering evanescent bubble.
• Physics denoting a field or wave that extends into a region where it
cannot propagate and whose amplitude therefore decreases with distance.
expurgate verb [ trans. ] [often as adj. ] ( expurgated)
remove matter thought to be objectionable or unsuitable from (a book or
account) : the expurgated Arabian Nights.facetious adjective
treating serious issues with deliberately inappropriate humor; flippant.
fatuous adjective
silly and pointless : a fatuous comment.
feckless adjective
(of a person) lacking in efficiency or vitality : a feckless mama's boy.
• unthinking and irresponsible : the feckless exploitation of the
world's natural resources.
fiduciary adjective Law
involving trust, esp. with regard to the relationship between a trustee
and a beneficiary : the company has a fiduciary duty to shareholders.
• archaic held or given in trust : fiduciary estates.
• Finance (of a paper currency) depending for its value on securities
(as opposed to gold) or the reputation of the issuer.
filibuster noun
1 an action such as a prolonged speech that obstructs progress in a
legislative assembly while not technically contravening the required
procedures : it was defeated by a Senate filibuster in June.
2 historical a person engaging in unauthorized warfare against a foreign
country.
gamete noun Biology
a mature haploid male or female germ cell that is able to unite with
another of the opposite sex in sexual reproduction to form a zygote.
WORDS 31-40
gauche adjective
lacking ease or grace; unsophisticated and socially awkward.
gerrymander verb [ trans. ] [often as n. ] (gerrymandering)
manipulate the boundaries of (an electoral constituency) so as to favor
one party or class.
• achieve (a result) by such manipulation : a total freedom to
gerrymander the results they want.
hegemony noun
leadership or dominance, esp. by one country or social group over others :
Germany was united under Prussian hegemony after 1871.
hemoglobin noun Biochemistry
a red protein responsible for transporting oxygen in the blood of
vertebrates. Its molecule comprises four subunits, each containing an iron
atom bound to a heme group.
homogeneous adjective
of the same kind; alike : timbermen prefer to deal with homogeneous woods.
• consisting of parts all of the same kind : culturally speaking the
farmers constitute an extremely homogeneous group.
• Mathematics containing terms all of the same degree.
hubris noun
excessive pride or self-confidence.
• (in Greek tragedy) excessive pride toward or defiance of the gods,
leading to nemesis.hypotenuse noun
the longest side of a right triangle, opposite the right angle.
impeach verb [ trans. ]
call into question the integrity or validity of (a practice) : there is no
basis to Searle's motion to impeach the verdict.
• charge (the holder of a public office) with misconduct : the governor
served only one year before being impeached and convicted for fiscal
fraud.
incognito adjective & adverb
(of a person) having one's true identity concealed :
[as adj. ] in order to observe you have to be incognito.
[as adv. ] he is now operating incognito.
incontrovertible adjective
not able to be denied or disputed : incontrovertible proof.
WORDS 41-50
inculcate verb [ trans. ]
instill (an attitude, idea, or habit) by persistent instruction : the
failures of the churches to inculcate a sense of moral responsibility.
• teach (someone) an attitude, idea, or habit by such instruction :
they will try to inculcate you with a respect for culture.
infrastructure noun
the basic physical and organizational structures and facilities (e.g.,
buildings, roads, and power supplies) needed for the operation of a
society or enterprise.
interpolate verb [ trans. ]
insert (something) between fixed points : illustrations were interpolated
in the text.
• insert (words) in a book or other text, esp. in order to give a false
impression as to its date.
• make such insertions in (a book or text).
• interject (a remark) in a conversation : [with direct speech ] “I
dare say,” interpolated her employer.
• Mathematics insert (an intermediate value or term) into a series by
estimating or calculating it from surrounding known values.
irony noun ( pl. -nies)
the expression of one's meaning by using language that normally signifies
the opposite, typically for humorous or emphatic effect : “Don't go
overboard with the gratitude,” he rejoined with heavy irony.
• a state of affairs or an event that seems deliberately contrary to
what one expects and is often amusing as a result : [with clause ] the
irony is that I thought he could help me.
• (also dramatic or tragic irony) a literary technique, originally used
in Greek tragedy, by which the full significance of a character's words
or actions are clear to the audience or reader although unknown to the
character.
jejune adjective
1 naive, simplistic, and superficial : their entirely predictable and
usually jejune opinions.
2 (of ideas or writings) dry and uninteresting : the poem seems to me
rather jejune.kinetic adjective
of, relating to, or resulting from motion.
• (of a work of art) depending on movement for its effect.
kowtow verb [ intrans. ] historical
kneel and touch the ground with the forehead in worship or submission as
part of Chinese custom.
• figurative act in an excessively subservient manner : she didn't have
to kowtow to a boss.
laissez faire noun
a policy or attitude of letting things take their own course, without
interfering.
• Economics abstention by governments from interfering in the workings
of the free market : [as adj. ] laissez-faire capitalism.
lexicon noun ( pl. -cons or -ca)
1 the vocabulary of a person, language, or branch of knowledge : the size
of the English lexicon.
• a dictionary, esp. of Greek, Hebrew, Syriac, or Arabic : a Greek–
Latin lexicon.
2 Linguistics the complete set of meaningful units in a language.
loquacious adjective
talkative.
WORDS 51-60
lugubrious adjective
looking or sounding sad and dismal.
metamorphosis noun ( pl. -phoses) Zoology
(in an insect or amphibian) the process of transformation from an immature
form to an adult form in two or more distinct stages.
• a change of the form or nature of a thing or person into a completely
different one, by natural or supernatural means : his metamorphosis
from presidential candidate to talk-show host.
mitosis noun ( pl. -ses) Biology
a type of cell division that results in two daughter cells each having the
same number and kind of chromosomes as the parent nucleus, typical of
ordinary tissue growth. Compare with meiosis .
moiety noun ( pl. -ties) formal or technical
each of two parts into which a thing is or can be divided.
• Anthropology each of two social or ritual groups into which a people
is divided, esp. among Australian Aboriginals and some American
Indians.
• a part or portion, esp. a lesser share.
• Chemistry a distinct part of a large molecule : the enzyme removes
the sulfate moiety.
nanotechnology noun
the branch of technology that deals with dimensions and tolerances of less
than 100 nanometers, esp. the manipulation of individual atoms and
molecules.
nihilism noun
the rejection of all religious and moral principles, often in the belief
that life is meaningless.
• Philosophy extreme skepticism maintaining that nothing in the worldhas a real existence.
• historical the doctrine of an extreme Russian revolutionary party c.
1900, which found nothing to approve of in the established social
order.
nomenclature the devising or choosing of names for things, esp. in a
science or other discipline.
• the body or system of such names in a particular field : the
nomenclature of chemical compounds.
• formal the term or terms applied to someone or something :
“customers” was preferred to the original nomenclature “passengers.”
nonsectarian adjective
not involving or relating to a specific religious sect or political group.
notarize verb [ trans. ]
have (a document) legalized by a notary.
obsequious adjective
obedient or attentive to an excessive or servile degree : they were served
by obsequious waiters.
WORDS 61-70
oligarchy noun ( pl. -chies)
a small group of people having control of a country, organization, or
institution : the ruling oligarchy of military men around the president.
• a state governed by such a group : the English aristocratic oligarchy
of the 19th century.
• government by such a group.
omnipotent adjective
(of a deity) having unlimited power; able to do anything.
• having ultimate power and influence : an omnipotent sovereign.
orthography noun ( pl. -phies)
the conventional spelling system of a language.
• the study of spelling and how letters combine to represent sounds and
form words.
oxidize verb
combine or become combined chemically with oxygen : [ trans. ] when coal
is burned any sulfur is oxidized to sulfur dioxide | [ intrans. ] the fats
in the food will oxidize, turning it rancid.
• Chemistry undergo or cause to undergo a reaction in which electrons
are lost to another species. The opposite of reduce.
parabola noun ( pl. -las or -lae)
a symmetrical open plane curve formed by the intersection of a cone with a
plane parallel to its side. The path of a projectile under the influence
of gravity ideally follows a curve of this shape.
paradigm noun
1 technical a typical example or pattern of something; a model : there is
a new paradigm for public art in this country. See note at model .
• a worldview underlying the theories and methodology of a particular
scientific subject : the discovery of universal gravitation became the
paradigm of successful science.
2 a set of linguistic items that form mutually exclusive choices in
particular syntactic roles : English determiners form a paradigm: we can
say “a book” or “his book” but not “a his book.” Often contrasted withsyntagm.
• (in the traditional grammar of Latin, Greek, and other inflected
languages) a table of all the inflected forms of a particular verb,
noun, or adjective, serving as a model for other words of the same
conjugation or declension.
parameter noun technical
a numerical or other measurable factor forming one of a set that defines a
system or sets the conditions of its operation : the transmission will not
let you downshift unless your speed is within the lower gear's parameters.
• Mathematics a quantity whose value is selected for the particular
circumstances and in relation to which other variable quantities may be
expressed.
• Statistics a numerical characteristic of a population, as distinct
from a statistic of a sample.
• (in general use) a limit or boundary that defines the scope of a
particular process or activity : they set the parameters of the debate.
pecuniary adjective formal
of, relating to, or consisting of money : he admitted obtaining a
pecuniary advantage by deception.
photosynthesis noun
the process by which green plants and some other organisms use sunlight to
synthesize foods from carbon dioxide and water. Photosynthesis in plants
generally involves the green pigment chlorophyll and generates oxygen as a
byproduct.
plagiarize verb [ trans. ]
take (the work or an idea of someone else) and pass it off as one's own.
• copy from (someone) in such a way.
WORDS 71-80
plasma noun
1 the colorless fluid part of blood, lymph, or milk, in which corpuscles
or fat globules are suspended.
• this substance taken from donors or donated blood for administering in
transfusions.
2 an ionized gas consisting of positive ions and free electrons in
proportions resulting in more or less no overall electric charge,
typically at low pressures (as in the upper atmosphere and in fluorescent
lamps) or at very high temperatures (as in stars and nuclear fusion
reactors).
• an analogous substance consisting of mobile charged particles (such as a
molten salt or the electrons within a metal).
3 a dark green, translucent variety of quartz used in mosaic and for other
decorative purposes.
4 another term for cytoplasm or protoplasm.
polymer noun Chemistry
a substance that has a molecular structure consisting chiefly or entirely
of a large number of similar units bonded together, e.g., many synthetic
organic materials used as plastics and resins.
precipitous adjective
1 dangerously high or steep : the precipitous cliffs of the North Atlantic
coast.
• (of a change to a worse situation or condition) sudden and dramatic :
the end of the war led to a precipitous decline in exports.2 (of an action) done suddenly and without careful consideration :
precipitous intervention.
quasar noun Astronomy
a massive and extremely remote celestial object, emitting exceptionally
large amounts of energy, and typically having a starlike image in a
telescope. It has been suggested that quasars contain massive black holes
and may represent a stage in the evolution of some galaxies.
quotidian adjective [ attrib. ]
of or occurring every day; daily : the car sped noisily off through the
quotidian traffic.
• ordinary or everyday, esp. when mundane : his story is an achingly
human one, mired in quotidian details.
• Medicine denoting the malignant form of malaria.
recapitulate verb [ trans. ]
summarize and state again the main points of : he began to recapitulate
his argument with care.
• Biology repeat (an evolutionary or other process) during development
and growth.
reciprocal adjective
1 given, felt, or done in return : she was hoping for some reciprocal
comment or gesture.
2 (of an agreement or obligation) bearing on or binding each of two
parties equally : the treaty is a bilateral commitment with reciprocal
rights and duties.
• Grammar (of a pronoun or verb) expressing mutual action or
relationship.
3 (of a course or bearing) differing from a given course or bearing by 180
degrees.
4 Mathematics (of a quantity or function) related to another so that their
product is one.
noun
1 technical a mathematical expression or function so related to another
that their product is one; the quantity obtained by dividing the number
one by a given quantity.
2 Grammar a pronoun or verb expressing mutual action or relationship,
e.g., each other, fight.
reparation noun
1 the making of amends for a wrong one has done, by paying money to or
otherwise helping those who have been wronged : the courts required a
convicted offender to make financial reparation to his victim.
• ( reparations) the compensation for war damage paid by a defeated
state.
2 archaic the action of repairing something : the old hall was pulled down
to avoid the cost of reparation.
respiration noun
the action of breathing : opiates affect respiration.
• chiefly Medicine a single breath.
• Biology a process in living organisms involving the production of
energy, typically with the intake of oxygen and the release of carbon
dioxide from the oxidation of complex organic substances.
sanguine adjective
1 cheerfully optimistic : they are not sanguine about the prospect.
• (in medieval science and medicine) of or having the constitutionassociated with the predominance of blood among the bodily humors,
supposedly marked by a ruddy complexion and an optimistic disposition.
• archaic (of the complexion) florid; ruddy.
• archaic bloody or bloodthirsty.
2 poetic/literary & Heraldry blood-red.
WORDS 81-90
soliloquy noun ( pl. -quies)
an act of speaking one's thoughts aloud when by oneself or regardless of
any hearers, esp. by a character in a play.
• a part of a play involving such an act.
subjugate verb [ trans. ]
bring under domination or control, esp. by conquest : the invaders had
soon subjugated most of the native population.
• ( subjugate someone/something to) make someone or something
subordinate to : the new ruler firmly subjugated the Church to the
state.
suffragist noun chiefly historical
a person advocating the extension of suffrage, esp. to women.
supercilious adjective
behaving or looking as though one thinks one is superior to others : a
supercilious lady's maid.
tautology noun ( pl. -gies)
the saying of the same thing twice in different words, generally
considered to be a fault of style (e.g., they arrived one after the other
in succession).
• a phrase or expression in which the same thing is said twice in
different words.
• Logic a statement that is true by necessity or by virtue of its
logical form.
taxonomy noun chiefly Biology
the branch of science concerned with classification, esp. of organisms;
systematics.
• the classification of something, esp. organisms : the taxonomy of
these fossils.
• a scheme of classification : a taxonomy of smells.
tectonic adjective
1 Geology of or relating to the structure of the earth's crust and the
large-scale processes that take place within it.
2 of or relating to building or construction.
tempestuous adjective
1 characterized by strong and turbulent or conflicting emotion : he had a
reckless and tempestuous streak.
2 very stormy : a tempestuous wind.
thermodynamics plural noun [treated as sing. ]
the branch of physical science that deals with the relations between heat
and other forms of energy (such as mechanical, electrical, or chemical
energy), and, by extension, of the relationships and interconvertibility
of all forms of energy.totalitarian adjective
of or relating to a system of government that is centralized and
dictatorial and requires complete subservience to the state : a
totalitarian regime.
noun
a person advocating such a system of government.
WORDS 91-100
unctuous adjective
1 (of a person) excessively or ingratiatingly flattering; oily : he seemed
anxious to please but not in an unctuous way.
2 (chiefly of minerals) having a greasy or soapy feel.
usurp verb [ trans. ]
take (a position of power or importance) illegally or by force : Richard
usurped the throne.
• take the place of (someone in a position of power) illegally:
supplant : the Hanoverian dynasty had usurped the Stuarts.
• [ intrans. ] ( usurp on/upon) archaic encroach or infringe upon
(someone's rights) : the Church had usurped upon the domain of the
state.
vacuous adjective
having or showing a lack of thought or intelligence; mindless : a vacuous
smile | vacuous slogans.
• archaic empty.
vehement adjective
showing strong feeling; forceful, passionate, or intense : her voice was
low but vehement | vehement criticism.
vortex noun ( pl. -texes or -tices)
a mass of whirling fluid or air, esp. a whirlpool or whirlwind.
• figurative something regarded as a whirling mass : the vortex of
existence.
winnow verb
1 [ trans. ] blow a current of air through (grain) in order to remove the
chaff.
• remove (chaff) from grain : women winnow the chaff from piles of
unhusked rice.
• reduce the number in a set of (people or things) gradually until only
the best ones are left : the contenders had been winnowed to five.
• find or identify (a valuable or useful part of something) : amidst
this welter of confusing signals, it's difficult to winnow out the
truth.
• identify and remove (the least valuable or useful people or things) :
guidelines that would help winnow out those not fit to be soldiers.
2 [ intrans. ] poetic/literary (of the wind) blow : the autumn wind
winnowing its way through the grass.
• [ trans. ] (of a bird) fan (the air) with wings.
wrought wrought
archaic past and past participle of work.
adjective
(of metals) beaten out or shaped by hammering.xenophobia noun
intense or irrational dislike or fear of people from other countries :
racism and xenophobia are steadily growing in Europe.
yeoman noun ( pl. -men)
1 historical a man holding and cultivating a small landed estate; a
freeholder.
• a person qualified for certain duties and rights, such as to serve on
juries and vote for the knight of the shire, by virtue of possessing
free land of an annual value of 40 shillings.
2 historical a servant in a royal or noble household, ranking between a
sergeant and a groom or a squire and a page.
3 Brit. a member of the yeomanry force.
4 a petty officer in the U.S. Navy or Coast Guard performing clerical
duties on board ship.
• (also yeoman of signals) (in the British Royal Navy and other
Commonwealth navies) a petty officer concerned with signaling.
ziggurat noun
(in ancient Mesopotamia) a rectangular stepped tower, sometimes surmounted
by a temple. Ziggurats are first attested in the late 3rd millennium BC
and probably inspired the biblical story of the Tower of Babel (Gen. 11:1–
Abate
v. to become less active, less intense, or less in amount
As I began my speech, my feelings of nervousness quickly abated.
Abstract
adj. existing purely in the mind; not representing actual reality
Julie had trouble understanding the appeal of the abstract painting.
Abysmal
adj. extremely bad
I got an abysmal grade on my research paper!
Accordingly
adv. in accordance with
All students must behave accordingly.
Acquisition
n. the act of gaining a skill or possession of something
Language acquisition is easier for kids than it is for adults.
Adapt
v. to make suit a new purpose
v. to accommodate oneself to a new condition, setting, or situation
The US has adapted many foreign foods to better suit the tastes of Americans.
Dogs are known for their ability to quickly adapt to their environments.
Adept
adj. having knowledge or skill (usu. in a particular area)
Beth loves playing the piano, but she’s especially adept at the violin.
Adequate
adj. having sufficient qualifications to meet a specific task or purpose
Though his resume was adequate, the company doubted whether he’d be a good fit.
Advent
n. the arrival or creation of something (usu. historic)
The world has never been the same since the advent of the light bulb.
Adversarial
adj. relating to hostile opposition
An adversarial attitude will make you many enemies in life.
Advocate
n. someone who promotes or defends something
v. to defend or promote something (usu. a belief, theory, opinion, etc.)
I am an advocate for free higher education.
Environmental protesters often advocate for cleaner energy practices.
Aesthetic
adj. relating to beauty or refined taste
The aesthetic decorations at the wedding reception made you feel as if you were a character in a fairy tale.
Afford
v. to be able to buy
v. to be able to spare
He’s saving money so he can afford to buy a new car.
I can’t afford to lose any more pencils!
Agitate
v. to promote something (usu. a cause)
They’re agitating for better health care.
Allow
v. to permit or consent to
US law allows citizens to speak freely.
Allude
v. to make a secretive mention of something
She alluded to the problem at hand but didn’t say anything more about it.
Altercation
n. a noisy argument or confrontation
Greg got into an altercation with a stranger at the bar.
Ambiguous
adj. unclear or vague in meaning
Her ambiguous statement made me question whether she could be trusted.
Ambitious
adj. having a powerful desire for success or achievement
Penny is so ambitious, she wants to be president someday.
Ambivalence
n. the state of being uncertain or stuck between two or more options
His ambivalence prevented him from immediately signing the contract.
Analogous
adj. similar but not identical
Green onions are considered analogous to spring onions.
Annihilate
v. to destroy or cause devastating destruction
The dictator sent orders to annihilate the group of rebels.
Anomaly
n. something different from the norm
This result is an anomaly and very rarely happens.
Anticipate
v. assume to be likely to happen
The party was just as fun as I had anticipated it would be.
Antipathy
n. a strong feeling of dislike
Her antipathy toward the professor was obvious: she rolled her eyes whenever he entered the classroom.
Apex
n. the highest point of something
The spring play was the apex of our school year.
Apprehension
n. fearful expectation of something
Her apprehension to leave her house resulted in her missing the train.
Articulate
v. to clearly express in words
She articulated her opinion on the price of the house.
Artificial
adj. something made; not occurring naturally
Many candies use artificial flavors to make them taste fruity.
Assertion
n. a strong declaration
His assertion that sharks are mammals made everyone laugh.
Austere
adj. extremely plain
adj. stern and forbidding
adj. relating to self-denial
He lived in a small, austere cabin in the middle of the woods.
My boss had an austere expression on her face.
An austere lifestyle, like that of monks, isn’t for everybody.
Authenticity
n. the quality of being real and true instead of fake and contrived
The police officer doubted the authenticity of the suspect’s story.
Avenue
n. an intangible path or approach to something
The company has decided to pursue other avenues.
Avid
adj. actively interested in or enthusiastic about something
Gerald is an avid soccer fan.
Basic
adj. relating to the foundation or basis of something
You have to start with basic Russian before you can move on to the advanced level.
Bear
v. to have as a characteristic
v. to have (a child)
v. to bring forth
v. to put up with
She bears a strong resemblance to your mother.
Judy will bear her first child later this year.
My garden is going to bear pumpkins this year.
I can’t bear her complaining any longer!
Benevolent
adj. kind, generous
Many cultures believe in benevolent spirits.
Bias
n. a preconception that prevents objectivity
It’s important to avoid bias when investigating a crime.
Bittersweet
adj. tinged with a feeling of sadness
The ending of the romance movie was bittersweet.
Bolster
v. to support, strengthen, or fortify
If we work together, we should be able to lift and then bolster the couch.
Boost
n. an increase or growth
v. to increase or make grow
The boost in profits was a welcome change.
In order to boost profits, you need to cater to your customers.
Brawl
n. an intense, loud fight
v. to fight loudly and disruptively
A brawl broke out at school today after one student accused another of cheating.
The two students brawled for an hour.
Brevity
n. the quality of being brief or terse
The brevity of their time together made it all the more romantic.
Candid
adj. direct, blunt
Josh is candid about his desire to become an actor.
Candor
n. the trait of being honest and frank
I admire her candor, especially when nobody else bothers to speak up.
Capitalize
v. to use to your advantage
I’d like to capitalize on your math skills by having your work the cash register.
Capture
v. to trap or take possession of
v. to successfully represent or imitate
v. to captivate, mesmerize
v. to catch or seize
The spy was captured by the enemy.
Your painting beautifully captures the ephemerality of life.
I was captured by her beauty.
The cops captured the criminal three days after the incident.
Civic
adj. relating to the city or citizens
Voting is a civic duty.
Clinical
adj. emotionally unattached (usu. used in medical or scientific setting)
Her clinical approach to situations allows her to handle them more effectively.
Clout
n. special advantage or power
Children of rich and famous people often believe they have a lot of clout.
Coarse
adj. indicating a rough texture
adj. lacking refinement or sophistication
The horse’s mane was coarse, as if it had never been washed.
The queen’s coarse way of speaking surprised the other members of royalty.
Coincide
v. to happen at the same time
It wasn’t until after I booked my ticket that I realized the concert coincided with my finals.
Commission
n. the use of payment to request something (e.g., a service or product)
This painting was commissioned by a rich merchant in 1589.
Comparable
adj. able to be compared
This novel is comparable to Huckleberry Finn.
Competent
adj. sufficiently qualified
We need to hire a competent web developer to create a good website for our company.
Complacent
adj. satisfied, with no desire to change or improve
Though he had never won any awards or even been published, he was complacent with his life as a poet.
Complement
v. to make perfect or complete
This wine perfectly complements this platter of gourmet cheese.
Concede
v. to be forced to agree or surrender
v. to admit to a transgression
With no chance of winning the battle, the army at last conceded.
Dan conceded to pranking his sister.
Conceive
v. to imagine or come up with
The plan to build the city was originally conceived in the early 1900s.
Condone
v. to overlook, approve, or allow
She couldn't condone her daughter's rebellious behavior.
Conducive
adj. able to bring about or be suitable for
The noisy students hardly made the campus library conducive to studying.
Conduct
v. to control or manage
v. to behave a certain way
The group conducted their research abroad last year.
Be sure to conduct yourself accordingly.
Confide
v. to share something secretive with someone
She confided all of her biggest secrets in her best friend.
Confine
v. to put limits on; to restrict
We are going to confine the use of this drinking fountain.
Consensus
n. overall agreement
After weeks of debating, the panel finally came to a consensus.
Constitute
v. to form or compose (part of) something
The desire for equality constituted the civil rights movement.
Contemplate
v. to think deeply about
She contemplated telling her teacher about the cheating student.
Contend
v. to maintain or assert (an opinion)
The president contends that the US government will not negotiate with terrorists.
Contradict
v. to be in contrast with
The camera footage contradicts his alibi.
Controversial
adj. highly debatable and causing contention
Millions of viewers watched the controversial debate take place.
Conventional
adj. abiding by accepted standards
She lives a conventional life in the suburbs.
Convey
v. to pass on or transfer (information)
I have trouble conveying my thoughts in French.
Conviction
n. a firm belief in something
Her religious convictions prevent her from eating meat.
Corroborate
v. to provide evidence for; to back up (a claim)
The note signed by her father corroborates her claim that she was absent from class that day.
Counteract
v. to work in opposition to
This ingredient seems to counteract the other ones.
Counterargument
n. an argument used to criticize or dismantle another argument
Make sure to include a counterargument in your essay so that you can show you’ve considered the topic from all perspectives.
Counterproductive
adj. hindering the achievement of a goal
Bill’s idea to take a shortcut was ultimately counterproductive: it took us twice as long to get to the train station.
Culmination
n. the final act or climax
The culmination of the performance was unforgettable.
Cultivate
v. to foster the growth of
Teachers don’t just pass on new information to students—they cultivate their academic potential.
Decree
v. to declare formally and with authority
The president decreed that Halloween would henceforth be a national holiday.
Deference
n. respect; regard
Her deference to the elderly makes her the perfect candidate for an internship at the retirement center.
Deficient
adj. not enough in degree or amount
I feel as though the sources for my paper are deficient.
Demonstrate
v. to do as an example
v. gives evidence for
Could you demonstrate the dance move for me?
This book’s use of words such as “grim” and “bleak” demonstrates the author’s mournful tone.
Demur
v. to object to
She demurred at my request to transfer to a different department.
Deplete
v. to (over)use over time (usu. resources)
The lost campers quickly depleted their supply of food.
Desolate
adj. bare, barren, empty
The moon is one giant, desolate landscape.
Devise
v. to come up with (a plan)
Lana devised a plan to make herself famous.
Dilemma
n. a problem, usually requiring a choice between two options
The main dilemma is whether to pay for a commercial or not.
Diligence
n. conscientiousness; the quality of being committed to a task
Diligence and confidence will get you far in life.
Diminish
v. to become smaller in scope or degree
The itchiness of mosquito bites usually starts to diminish after a few days.
Dire
adj. hopeless and dangerous or fearful
When the police didn’t explain what was happening right away, Jane knew that the situation must be dire.
Discord
n. disagreement
Disputes over money caused intense discord in the family.
Disdain
n. a lack of respect and strong dislike (toward something or someone)
He looked at me with such disdain that I immediately knew the job wouldn’t work out.
Dismay
n. hopelessness, stress, or consternation
v. to fill with woe or apprehension
To Nick’s dismay, he got an F on the test.
Many were dismayed by the town’s implementation of metered parking.
Disparage
v. to belittle or speak down to
A good boss is stern but never disparages his or her employees.
Dispatch
v. to send off a message or messenger
The mother dispatched her daughter to their neighbor’s house.
Diversification
n. the act of becoming diverse
Lately, there’s been noticeable diversification of students at higher institutions.
Doctrine
n. a principle, theory, or position, usu. advocated by a religion or gov’t
Devoutly religious people often live their lives according to their doctrines.
Dominion
n. power and authority (usu. over a territory)
n. a legal territory
The country claimed to have dominion over parts of Russia.
Puerto Rico is a dominion of the US.
Dreary
adj. sad, gloomy, dull
The gray clouds in the sky made the day feel dreary.
Dubious
adj. doubtful, questionable
The man’s claims to the throne were dubious since nobody knew where he’d come from.
Eccentric
adj. peculiar or odd; deviating from the norm
She’s a little eccentric but still fun to be around.
Egregious
adj. extremely bad
After cheating on the exam, Emily began to feel as though she’d made an egregious mistake.
Eloquent
adj. having refined or expressive communication skills (in speaking or writing)
His speech was not only eloquent but also extremely compelling.
Eminent
adj. superior or distinguished; high in position or status
Our town made news when the eminent magician came to perform at our local theater.
Emit
v. to discharge, give forth, or release
Plants consume carbon dioxide and emit oxygen.
Emphatic
adj. very expressive; using emphasis
Her emphatic smile told me she was excited to ride the roller coaster.
Empirical
adj. derived from experience, observation, or an experiment
You need empirical evidence to support your claim.
Endow
v. to equip or bestow (usu. a quality or ability)
According to the myth, the gods endowed him with the gift of healing.
Endure
v. to withstand, sustain, or hold out against
I can’t endure this wait any longer. Will Stanford accept or reject me?
Entail
v. to involve or include
A doctoral program entails long nights and a heavy workload.
Entrenched
adj. firmly established
Her face will forever be entrenched in my memory.
Enumerate
v. to specify or count
I can’t enumerate how many times I’ve had to remind my students when their papers are due.
Envy
n. excessive jealousy
v. to admire and be jealous of
His envy of her is quite obvious.
She envies her coworker's social skills.
Erratic
adj. having no fixed course; deviating from the norm
The car became erratic after slipping on ice.
Establish
v. to enact
v. to found (a business, group, school, etc.)
They established a law that made it illegal to drive after drinking any amount of alcohol.
Our group established a new branch in Chicago.
Evoke
v. to draw forth or call up
Horror movies are great at evoking fear.
Exacerbate
v. to make worse or increase the severity of
The doctor told me not to run as it can exacerbate my knee injury.
Excel
v. to do something extremely well or to be superior in
She was a well-rounded student but excelled especially in science.
Exert
v. to put into use (usu. as effort)
Don’t exert all of your energy at once.
Exhilarating
adj. invigorating, stimulating, or exciting
The music playing at the club was catchy and exhilarating.
Expend
v. to use up (as in energy or money)
Be careful not to expend all your energy in the first half of a marathon.
Exploit
v. to use selfishly or for profit
The shoddy company exploited its workers by paying them extremely low wages.
Facilitate
v. to aid the progress of
In grad school, advisors facilitate students’ research and offer constructive criticism.
Feasibility
n. the practicality or possibility of something
The feasibility of her project was doubtful; she’d have to go all the way to Antarctica and back before the school year ended.
Ferocity
n. viciousness, violence
The lion is just one wild animal known for its ferocity.
Fiscal
adj. related to (government) money
Fiscal policy is how the government uses money to influence the economy.
Flourish
v. to prosper, grow, or make fast progress
After one year, the tiny plants had flourished into a breathtaking garden.
Fluctuate
v. to be unstable; to rise and fall
Stocks can fluctuate on a daily basis, making it difficult to determine when to buy or sell one.
Foment
v. to stir up
The civilians accused their leader of fomenting political unrest.
Foreseeable
adj. capable of being predicted or anticipated
I can't imagine aliens visiting us in the foreseeable future.
Frankly
adv. directly, clearly
I frankly don’t see the point in learning to drive.
Freewheeling
adj. carefree
His freewheeling attitude often got him in trouble at work.
Fundamental
adj. the most essential or most basic part
A thesis is arguably the most fundamental part of an essay.
Galvanizing
adj. thrilling, exciting, stimulating
The galvanizing performance left everyone spellbound.
Geriatric
adj. relating to old age
I became interested in geriatric medicine shortly after my grandfather passed away from cancer.
Hostile
adj. harmful, dangerous
The voices around the corner sounded angry, hostile even.
Hypothetical
adj. supposed; related to a hypothesis
For my physics homework, I must come up with a hypothetical situation.
Ignominious
adj. publicly shameful or humiliating
The politician's expensive campaign ultimately ended in ignominious defeat.
Impart
v. to transmit, bestow, or disclose
Parents must impart common sense to their children.
Impartiality
n. the equal and objective treatment of opposing views
To ensure impartiality, we require everyone to follow these general guidelines.
Imposing
adj. impressive (esp. in size or appearance)
The old mansion was imposing in its huge size and gothic architecture.
Imposition
n. an unnecessary burden
If it’s not too much of an imposition, could you proofread my paper?
Imprudent
adj. not cautious or prudent; rash
Backpacking abroad can be fun, but don’t be imprudent about money.
Incite
v. to encourage or stir up
Her hateful words incited anger in the crowd.
Indifference
n. apathy, emotional detachment
The girl’s indifference toward her brother upset their parents.
Indiscriminately
adv. randomly; with little or no distinction
Lottery winners are chosen indiscriminately.
Indulge
v. to give into; to satisfy or gratify
My friend loves to indulge in cheesy romance movies.
Infer
v. to guess, conclude, or derive by reasoning
You can infer from this quotation that the writer didn’t care for “pretty” language.
Innovative
adj. novel or new (esp. as an idea or invention)
Her invention was incredibly innovative and won her multiple awards.
Insatiable
adj. can’t be satisfied
A vampire’s thirst for blood is said to be insatiable.
Inversion
n. a reversal
The culture’s norms were an inversion of our own.
Invoke
v. to call on; to appeal to (e.g., a higher power)
The shaman attempted to invoke a demon.
Irreconcilable
adj. incapable of being in harmony or agreed upon
The couple’s differences were ultimately irreconcilable, giving them no choice but to break up.
Lament
v. to feel sorrow for; to mourn
Susan lamented her missed chance at going to Europe with her high school class.
Locomotion
n. movement
Physics involves the study of locomotion.
Lucrative
adj. capable of making a lot of money; profitable
Writing books isn’t a particularly lucrative career, unless you’re J.K. Rowling.
Malicious
adj. harmful, spiteful
The malicious spirit drove out the inhabitants from their home.
Malleable
adj. capable of being molded or changed
Children’s minds are malleable but only for so long.
Materialistic
adj. superficial; focus on material possessions
Many people accuse Americans of being materialistic.
Melodramatic
adj. extravagant or exaggerated (as of a melodrama)
The melodramatic play was well liked by the audience.
Modest
adj. simple and humble
adj. small in size or amount
They moved into a modest house in the countryside.
I received a modest sum of money for my help at the company event.
Modify
v. to change, alter, or tweak
Dr. Nguyen modified the gene so that it wouldn’t carry the disease.
Momentous
adj. historically significant
Her win in the election was momentous.
Novel
adj. new, innovative
We are looking for novel ways to approach the project.
Nuance
n. a subtle difference in meaning
Body-language experts even understand the nuances of facial expressions.
Null
adj. legally void and ineffective
The government declared their marriage null.
Objectivity
n. judgment based on observations instead of emotions or opinions
In scientific research, objectivity is of utmost importance.
Obsolete
adj. no longer used; rare or uncommon
Historians assumed record players would be obsolete by now, but in fact they’re making a huge comeback.
Omnipotent
adj. almighty and all powerful
Gods are omnipotent beings who can control human destiny.
Onset
n. the beginning or early stages
At the onset of her career as a lawyer, things were looking up.
Opine
v. to openly express an opinion
The new employee opined at the company meeting.
Ornate
adj. highly detailed and decorated
That ornate silverware must be worth thousands of dollars!
Oust
v. to remove or force out of (usu. a position or office)
Sick and tired of putting up with his bad moods, the pirates ousted their captain.
Paramount
adj. predominant, superior, most important
Our paramount concern is the safety of our employees.
Peculiar
adj. strange, bizarre
Upon entering the abandoned house, Kate experienced a peculiar feeling, as if someone was watching her.
Perish
v. to die; to pass away
According to the news, nobody perished in the fire.
Persecute
v. to cause suffering to
They will persecute anyone who doesn’t agree with their views of the world.
Petulant
adj. cranky, pouty, irritable
Petulant children are especially difficult to care for.
Pinnacle
n. highest level or degree
Many believe that composers such as Beethoven and Mozart represent the pinnacle of classical music.
Pitiable
adj. deserving pity
The frail-looking dog was pitiable, so I gave it some food and took it inside to care for it.
Plausible
adj. reasonable and possibly true
Her story is plausible, but that doesn’t mean she’s telling the truth.
Postulate
v. to assert
The literary critic postulates that romanticism and naturalism are actually interconnected.
Potent
adj. having great influence
adj. having a strong, chemical effect
The bald eagle is a potent symbol of the US.
The potion was definitely potent—it healed my wounds immediately!
Pragmatic
adj. practical, useful
It’s not necessarily more pragmatic to study engineering than it is to study philosophy.
Precedent
n. an example or subject from earlier in time
This change in law is without historical precedent.
Predecessor
n. someone who comes before you (usu. in position or office)
My predecessor gave me many tips for running the office.
Prescribe
v. to command orders
v. to issue authorization for medications
The directions for our essay prescribe a length of at least ten pages.
A doctor must prescribe you this medication before you can begin taking it.
Principle
n. basic truth, assumption, or rule
Remember the universal principle: treat others as you want them to treat you.
Prohibit
v. to command against, to outlaw
Alcohol was prohibited in the US in the 1920s.
Prompt
adj. punctual, on time
n. a cue to begin something; instructions
v. to incite, propel, or cause to act
She is always prompt when it comes to turning in her homework.
I had to write an essay based on a prompt.
The possibility of a scholarship prompted him to apply to Harvard.
Promulgate
v. to put into law or formally declare
The ruler will at last promulgate an amnesty with the neighboring countries.
Prosecute
v. to bring criminal action against someone (in a trial)
The suspect was prosecuted yesterday.
Provocative
adj. intending to provoke, inspire, or arouse
Her nude paintings are considered quite provocative.
Qualitative
adj. involving qualities of something (features and content)
I noticed a qualitative change in her paintings.
Quantitative
adj. involving quantities (numbers and amounts)
We must conduct a quantitative analysis.
Quirk
n. a strange habit
His biggest quirk is his love of old marbles.
Ramify
v. to split into two or more branches
Cars ramified throughout the world in the twentieth century.
Rash
adj. without attention to danger or risk
Her rash decision to pass the car nearly resulted in a crash.
Raw
adj. unrefined
adj. not processed; uncooked (as in food)
He’s got raw talent as a singer, but he needs to work on his performance skills.
In some countries, such as Japan, it is normal to eat raw fish.
Readily
adv. right away and without difficulty
Water was readily available at different points in the race.
Reconsideration
n. thinking again about a previously made choice
The judges’ reconsideration of her performance resulted in her victory.
Reform
n. a change for the better; improvement
v. to improve via change
The reform made it so that only those 18 and older can legally drive.
The government reformed its vague policies on marijuana use.
Refute
v. to prove to be untrue, unfounded, or incorrect
The student refuted the professor’s claim in class.
Reinforce
v. to strengthen or add support to
We can use these pipes to reinforce the structure.
Reluctantly
adv. somewhat unwillingly
Max reluctantly agreed to see the horror movie with his friends.
Renounce
v. to give up (usu. power or a position)
v. to cast off
Our CEO renounced her position yesterday.
He renounced his friend after he caught her stealing money from him.
Reproach
v. to criticize
The mother reproached her daughter’s school for making students come in during a blizzard.
Repudiate
v. to refuse to recognize as true
v. to cast off
The father repudiated his son’s marriage.
She repudiated her son once she found out he’d married someone without telling her.
Retention
n. the act of keeping something
Water retention can make you weigh more on certain days.
Satiated
adj. satisfied (usu. in hunger)
I felt satiated after eating a snack.
Savvy
adj. having practical intelligence or knowledge
My brother is not very savvy when it comes to using public transportation.
Scandalous
adj. morally offensive, often causing damage to one’s reputation
The scandalous politician decided it was best to resign from office.
Scorn
v. to look down on with disdain
It’s difficult for me not to scorn those who use improper grammar.
Scrupulous
adj. paying great attention to detail
I am a scrupulous proofreader and never miss an error.
Scrutinize
v. to examine carefully and critically
The teacher scrutinized her students’ essays.
Secrete
v. to produce or release (a substance)
Trees secrete a sticky substance called sap.
Sentiment
n. opinion
n. a tender or moving gesture
I am of the sentiment that you should never give out your passwords to anyone.
Even though I’m not a big fan of porcelain dolls, I appreciated the sentiment.
Sheer
adj. so thin that light can shine through
The curtains on the window were so sheer you could clearly see inside the house.
Simple
adj. easy; not complex
adj. undecorated
This math problem is so simple even a first grader can solve it.
The simple beauty of the ocean is what makes it memorable.
Sinister
adj. ominous, evil
Medieval peasants believed sinister demons could harm humans.
Solidarity
n. the joining of commonalities or common purposes among a group
I stood in solidarity with other female students by refusing to wear the school’s sexist uniform.
Sparingly
adv. insufficiently, meagerly, or in a restricted manner
Due to my condition, I must eat salt sparingly.
Spawn
v. to release eggs
v. to call forth or generate
Frogs typically spawn in ponds.
The topic spawned an ongoing debate among his family members.
Spur
v. to stimulate or incite
Her bravery spurred others to act.
Squalid
adj. run-down, sordid, or sleazy
The squalid cabin needed a new roof and an exterminator.
Stark
adj. very plain; devoid of any details or features
Looking out at the stark landscape, I felt a keen sense of isolation.
Static
adj. motionless
adj. changeless
The ball is static.
Her life has been static for the past three years.
Subordinate
adj. lower in rank
n. someone lower in rank
v. to make dependent on or put at a lower rank
The subordinate officers work every day.
My subordinate will check you in.
You aren’t my boss—you can’t subordinate me to the role of receptionist!
Subsequently
adv. happening later or after something
I subsequently went home.
Substantial
adj. very large in amount or degree
I was shocked to find a substantial amount of money beneath the park bench.
Substantiate
v. to strengthen with new evidence or facts
It is important for scientists to substantiate their theories whenever possible.
Subtle
adj. hard to detect or analyze
I detected in her expression a subtle hint of irritation.
Sufficient
adj. enough; just meeting a requirement
These boxes should be sufficient for our move.
Surly
adj. unfriendly; inclined to anger
The bartender was a surly fellow who wasn’t afraid to start a fight.
Surmount
v. to get on top of or overcome
They managed to surmount the language barrier by using a translation app.
Susceptible
adj. to be vulnerable (to something)
Children are more susceptible to certain illnesses than adults are.
Tactful
adj. skilled at dealing with people
Her tactful attitude toward our class made her one of my favorite teachers.
Taut
adj. pulled tight
The rubberband was taut and ready to be fired.
Teeming
adj. abundantly filled (usu. with living organisms)
Doorknobs are not as clean as they look and are often teeming with germs.
Temperament
n. usual mood or feelings
She had a hostile temperament, making her intimidating to most people.
Tentative
adj. not yet finalized
We haven’t made any official arrangements yet, but the tentative location for our wedding is Hawaii.
Transparent
adj. see-through; so thin that light can shine through
adj. truthful or easy to perceive
Stained window glass isn’t as transparent as regular window glass is.
She was transparent about her plans to end her marriage.
Treacherous
adj. dangerous and unstable
The journey was becoming treacherous, but they continued on regardless.
Tremendous
adj. very large, good, or bad in degree or size
Tremendous news! You don’t have to repay your loans!
Ubiquitous
adj. being everywhere at once
Cell phones are ubiquitous these days.
Unadorned
adj. undecorated, plain
Though the dress was cheap and unadorned, it was by far her favorite one on the rack.
Undermine
v. to weaken or subvert (usu. gradually or secretly)
Parents should take care not to constantly undermine their children.
Underscore
v. to emphasize or give additional weight to
This sentence seems to underscore the overall meaning of the passage.
Undulate
v. to move as ripples or in a wavy pattern
Belly dancers are known for their ability to skillfully undulate their stomachs.
Unilateral
adj. one-sided
The unilateral decision was deemed unfair by the other party involved.
Unjust
adj. unfair; not justified
The court’s decision is unjust—he should not go free.
Unmitigated
adj. downright, utter, total
My speech was an unmitigated disaster!
Unprecedented
adj. completely new and never having happened before; historic
The number of protestors was unprecedented.
Unveil
v. to make visible; to reveal
We plan to unveil our plans for the new company project on Sunday.
Urge
n. desire or impulse
v. to encourage or persuade
He had the urge to tell his parents about his acceptance to Columbia but decided against it.
She urged her sister to apply to Stanford.
Validate
v. to prove or declare valid
Your selfish actions do not validate your feelings for me.
Viability
n. ability to be done in a practical or useful way
The viability of the solution is questionable.
Vital
adj. urgently necessary
It is vital that you respond by the deadline.
Vow
v. to promise
My brother quickly broke his vow to never eat chocolate again.
Warrant
v. to prove to be reasonable
Wanting to look cool in front of your friends doesn’t warrant breaking the law.
Yield
n. production of an amount
v. to give way to or surrender to
v. to produce or supply
The farmer’s annual pumpkin yield exceeded 10,000.
Cars turning right on red must yield to oncoming traffic.
Our experiment yielded many unique-looking vegetables.