LSAT Vocabulary

Abate

To become less intense, widespread, or severe.

Similar definitions: diminish, subside, lessen

Example: "The protests did not          even after the government issued a formal apology."

Aberrant

Departing from what is normal, usual, or expected.

Similar definitions: anomalous, deviant, atypical

Example: "The scientist dismissed the          data point as a likely measurement error."

Abridge

To shorten a written work without losing the essential meaning; also, to curtail rights or privileges.

Similar definitions: condense, curtail, truncate

Example: "The court ruled that the regulation did not unconstitutionally          the right to free speech."

Accumulate

To gather or build up over time, especially in increasing quantities.

Similar definitions: amass, accrue, aggregate

Example: "Small errors can          over time and eventually produce significant distortions in the data."

Ad hominem

A logical fallacy that attacks the person making an argument rather than the argument itself.

Example: "The senator's response was a classic          attack, criticizing her opponent's character instead of addressing the policy."

Advance

In LSAT context, to put forward or promote an argument, idea, or claim for consideration.

Similar definitions: propose, assert, promote

Example: "The author          the theory that economic factors were the primary cause of the conflict."

Advocate

To publicly recommend or support a particular cause, policy, or course of action.

Similar definitions: champion, endorse, promote

Example: "Several legal scholars          for the reform of mandatory sentencing guidelines."

Aggregate

Formed by combining several separate elements into a whole; a total or combined amount.

Similar definitions: collective, cumulative, total

Example: "The          effect of the policy changes was far greater than any single reform."

Altruistic

Showing a selfless concern for the well-being of others; unselfish.

Similar definitions: selfless, benevolent, philanthropic

Example: "The researcher argued that seemingly          behavior in animals may actually serve evolutionary self-interest."

Ambiguous

Open to more than one interpretation; not having a single clear meaning.

Similar definitions: equivocal, vague, unclear

Example: "The statute's          wording has led courts to reach conflicting interpretations."

Ameliorate

To make something bad or unsatisfactory better; to improve.

Similar definitions: improve, alleviate, mitigate

Example: "The new housing program was designed to          the effects of poverty on urban communities."

Ample

Enough or more than enough; plentiful in quantity or size.

Similar definitions: abundant, sufficient, plentiful

Example: "The prosecution presented          evidence to establish motive, but the defense challenged its relevance."

Analogous

Comparable in certain respects; similar enough to allow a meaningful comparison.

Similar definitions: comparable, similar, parallel

Example: "The court found the two cases to be         , reasoning that the same legal principle should apply to both."

Analogy

A comparison between two things for the purpose of explanation or clarification, often between otherwise unrelated subjects.

Similar definitions: comparison, parallel, correspondence

Example: "The lawyer drew an          between the current case and a landmark ruling from the previous decade."

Anomaly

Something that deviates from what is standard, normal, or expected.

Similar definitions: irregularity, aberration, deviation

Example: "The sudden drop in crime rates was considered an          by researchers who had predicted the opposite trend."

Antecedent

A thing or event that existed before or logically precedes another; in conditional logic, the "if" clause.

Similar definitions: precursor, predecessor, forerunner

Example: "In the conditional statement 'If it rains, the ground gets wet,' rain is the         ."

Arbitrary

Based on random choice or personal whim rather than any reason or system; not supported by objective criteria.

Similar definitions: random, capricious, unjustified

Example: "The court struck down the regulation as         , finding no rational basis for the distinction it drew."

Arcane

Understood by few; mysterious or secret, requiring specialized knowledge.

Similar definitions: esoteric, obscure, cryptic

Example: "The professor specialized in          medieval texts that few scholars could translate."

Assertion

A confident and forceful statement of fact or belief presented as part of an argument.

Similar definitions: claim, declaration, contention

Example: "The author's central          is that technological progress does not inevitably lead to social improvement."

Assuage

To make an unpleasant feeling less intense; to relieve or ease.

Similar definitions: alleviate, soothe, mitigate

Example: "The government's compensation package did little to          the community's concerns about environmental damage."

Assume

To take for granted that something is true without proof; to accept as a starting point for reasoning.

Similar definitions: presuppose, presume, take for granted

Example: "The argument          that all participants had equal access to the information, which may not be the case."

Assumption

An unstated premise that must be true for an argument's conclusion to logically follow from its premises.

Similar definitions: presupposition, premise, supposition

Example: "A key          of the argument is that consumer preferences have not changed over the past decade."

Attenuate

To reduce the force, effect, or value of something; to weaken.

Similar definitions: diminish, weaken, lessen

Example: "Over time, the influence of the original study was          by contradictory findings."

Attribute

To regard something as being caused by a particular factor or person.

Similar definitions: ascribe, credit, assign

Example: "Historians          the decline of the empire to a combination of military overextension and internal corruption."

Audacious

Showing a willingness to take surprisingly bold risks; daring.

Similar definitions: bold, daring, fearless

Example: "The defense attorney made the          claim that the evidence had been entirely fabricated."

Belie

To fail to give a true impression of something; to contradict or misrepresent.

Similar definitions: contradict, misrepresent, disguise

Example: "The company's strong earnings report          the underlying financial difficulties it was facing."

Bolster

To support, strengthen, or reinforce an argument, position, or claim.

Similar definitions: strengthen, reinforce, buttress

Example: "The new findings          the claim that early intervention programs reduce recidivism rates."

Capricious

Given to sudden and unaccountable changes of mood or behavior; unpredictable.

Similar definitions: fickle, erratic, whimsical

Example: "The court ruled that the agency's enforcement had been          and inconsistent, violating due process."

Catalyst

A person or thing that precipitates an event or change; something that accelerates a process.

Similar definitions: stimulus, trigger, impetus

Example: "The court's ruling served as a          for sweeping legislative reform across several states."

Categorical

Unambiguously explicit and direct; without exceptions or conditions.

Similar definitions: absolute, unequivocal, unconditional

Example: "The spokesperson issued a          denial of the allegations, leaving no room for interpretation."

Causation

The relationship between cause and effect; the principle that one event directly brings about another.

Similar definitions: cause, causal link, causal relationship

Example: "The study established correlation but could not demonstrate          between the two variables."

Caustic

Sarcastic in a scathing and bitter way; severely critical.

Similar definitions: scathing, biting, acerbic

Example: "The reviewer's          remarks about the study's methodology prompted a heated debate among scholars."

Circumstantial

Based on indirect evidence from which a fact can be inferred but not proven directly.

Similar definitions: indirect, inferential, incidental

Example: "The case against the defendant rested entirely on          evidence, with no eyewitness testimony."

Circumvent

To find a way around an obstacle or rule; to avoid or bypass.

Similar definitions: bypass, evade, sidestep

Example: "Companies found creative ways to          the new environmental regulations without technically violating them."

Claim

A statement or assertion presented as fact within an argument; a position that a speaker or author is defending.

Similar definitions: assertion, contention, proposition

Example: "The author's central          is that urban sprawl has more negative effects on the environment than industrial pollution."

Cogent

Clear, logical, and convincing in reasoning or argument.

Similar definitions: compelling, persuasive, convincing

Example: "The dissenting judge offered a          argument that the majority opinion had misinterpreted the statute."

Coherent

Logical and consistent; forming a unified whole in which all parts fit together.

Similar definitions: logical, consistent, unified

Example: "The witness struggled to provide a          account of the events leading up to the incident."

Compel

To force or oblige someone to do something; to make a course of action necessary.

Similar definitions: force, oblige, require

Example: "The new evidence could          the court to reconsider its earlier ruling."

Concede

To admit that something is true or valid after first resisting the point; to acknowledge a weakness in one's argument.

Similar definitions: acknowledge, admit, grant

Example: "The author          that the study had limitations but argued that its conclusions were still valid."

Conclude

To arrive at a judgment or decision by reasoning from evidence; to reach a logical end point.

Similar definitions: deduce, determine, infer

Example: "Based on the available data, the researchers          that the treatment was effective for a majority of patients."

Condition

In logic, a circumstance or factor that must be present for something else to occur; a requirement or prerequisite.

Similar definitions: prerequisite, requirement, stipulation

Example: "Adequate funding is a necessary          for the program to achieve its stated goals."

Conform

To comply with rules, standards, or laws; to behave according to socially acceptable conventions.

Similar definitions: comply, adhere, follow

Example: "The manufacturer's products must          to federal safety standards before they can be sold."

Confound

To cause surprise or confusion; in research, to introduce an uncontrolled variable that distorts results.

Similar definitions: confuse, muddle, complicate

Example: "The presence of multiple variables          the study's results, making it impossible to isolate a single cause."

Consequent

In conditional logic, the part that follows from the antecedent; the "then" clause of an if-then statement.

Example: "In 'If it rains, the streets are wet,' the phrase 'the streets are wet' is the         ."

Constitute

To make up or form the basis of something; to be equivalent to.

Similar definitions: comprise, compose, represent

Example: "The judge questioned whether the defendant's actions          a violation of the existing statute."

Contention

An assertion or claim, especially one maintained in an argument; a point of dispute.

Similar definitions: assertion, claim, argument

Example: "The plaintiff's main          is that the contract was signed under duress and should be voided."

Contingency

A future event or circumstance that is possible but cannot be predicted with certainty.

Similar definitions: eventuality, possibility, uncertainty

Example: "The plan accounted for every         , including the possibility that federal funding would be cut."

Contrapositive

The logically equivalent form of a conditional statement created by negating and reversing both the antecedent and the consequent.

Example: "The          of 'If it rains, the ground is wet' is 'If the ground is not wet, it did not rain.'"

Corollary

A proposition that follows from one already proved; a natural consequence or result.

Similar definitions: consequence, result, byproduct

Example: "A          of the court's ruling is that similar regulations in other states may also be unconstitutional."

Correlation

A mutual relationship or connection between two variables, which does not necessarily imply that one causes the other.

Example: "The study found a strong          between income level and educational attainment, but could not establish causation."

Corroborate

To confirm or give support to a statement, theory, or finding with additional evidence.

Similar definitions: confirm, verify, substantiate

Example: "Several independent witnesses were able to          the defendant's account of the events."

Counterexample

A specific instance that disproves a generalization or universal claim.

Example: "The critic offered a          to show that the proposed rule would not apply in all circumstances."

Criterion

A principle or standard by which something may be judged or decided.

Similar definitions: standard, benchmark, measure

Example: "The primary          for evaluating the policy should be its impact on public health outcomes."

Cryptic

Having a meaning that is mysterious or obscure; difficult to understand.

Similar definitions: enigmatic, obscure, ambiguous

Example: "The regulation's          language left many businesses unsure of how to comply."

Culpable

Deserving blame or censure for being wrong, harmful, or negligent.

Similar definitions: blameworthy, guilty, at fault

Example: "The court found the manufacturer          for failing to warn consumers about the product's risks."

Deduce

To arrive at a logical conclusion by reasoning from general principles or available evidence.

Similar definitions: conclude, infer, reason

Example: "From the evidence presented, the jury could reasonably          that the defendant was at the scene."

Deference

Humble submission and respect; willingness to yield to the opinion or wishes of another.

Similar definitions: respect, regard, compliance

Example: "The appellate court showed          to the lower court's findings of fact."

Deleterious

Causing harm or damage; injurious to health or well-being.

Similar definitions: harmful, detrimental, injurious

Example: "Prolonged exposure to the chemical compound was shown to have          effects on respiratory health."

Delineate

To describe or portray something precisely; to indicate the exact position of a boundary or distinction.

Similar definitions: outline, define, describe

Example: "The court sought to          the boundary between protected speech and speech that constitutes incitement."

Derive

To obtain something from a specified source; to base a concept on a logical extension of another.

Similar definitions: obtain, extract, deduce

Example: "The author          her conclusions from a careful analysis of three decades of census data."

Dichotomy

A division or contrast between two things that are presented as entirely different or opposed.

Similar definitions: division, split, contrast

Example: "The author challenges the          between nature and nurture, arguing that the two are deeply intertwined."

Diminish

To make or become less in size, importance, or value; to reduce or weaken.

Similar definitions: decrease, lessen, reduce

Example: "The new evidence does not          the strength of the original argument."

Discrepancy

A lack of compatibility or similarity between two or more facts, claims, or statements.

Similar definitions: inconsistency, disparity, divergence

Example: "The          between the two eyewitness accounts raised questions about the reliability of the testimony."

Disparate

Essentially different in kind; not able to be compared or so different as to be incomparable.

Similar definitions: different, dissimilar, distinct

Example: "The study attempted to draw conclusions by comparing          populations with vastly different socioeconomic backgrounds."

Dispassionate

Not influenced by strong emotion; able to be rational and impartial.

Similar definitions: impartial, objective, unbiased

Example: "The report called for a          analysis of the data, free from ideological bias."

Distinguish

To recognize or point out a difference between two or more things; to differentiate.

Similar definitions: differentiate, discriminate, separate

Example: "The passage argues that it is important to          between correlation and causation when interpreting research findings."

Doctrine

A belief or set of beliefs held and taught as true by a group; in law, a principle established through past decisions.

Similar definitions: principle, tenet, precept

Example: "The legal          of sovereign immunity protects government entities from certain types of lawsuits."

Dogmatic

Inclined to lay down principles as incontrovertibly true, without consideration of evidence or the opinions of others.

Similar definitions: doctrinaire, rigid, opinionated

Example: "The critic accused the professor of being too          in her insistence that only one interpretation of the text was valid."

Dubious

Hesitating or doubting; not to be relied upon; of questionable value or truth.

Similar definitions: doubtful, questionable, suspect

Example: "The conclusion rests on          assumptions that have not been verified by independent research."

Eclectic

Deriving ideas, style, or taste from a broad and diverse range of sources.

Similar definitions: varied, diverse, wide-ranging

Example: "The author drew on an          mix of philosophical traditions to support her thesis."

Efficacy

The ability to produce a desired or intended result; effectiveness.

Similar definitions: effectiveness, potency, success

Example: "Researchers questioned the          of the drug after the clinical trial produced inconclusive results."

Elucidate

To make something clear; to explain or shed light on a complex topic.

Similar definitions: clarify, explain, illuminate

Example: "The professor's lecture helped to          the complex relationship between trade policy and economic growth."

Empirical

Based on observation or experience rather than theory or pure logic.

Similar definitions: observational, experiential, evidence-based

Example: "The researchers emphasized that their conclusions were supported by          data gathered over a ten-year period."

Endorse

To declare one's public approval or support of a position, candidate, or proposal.

Similar definitions: support, approve, sanction

Example: "Several prominent economists          the proposed tax reform as beneficial for long-term growth."

Engender

To cause or give rise to a feeling, situation, or condition.

Similar definitions: produce, generate, create

Example: "The policy was intended to          public trust in the institution."

Entail

To involve or necessitate as a consequence or condition; to logically require.

Similar definitions: involve, require, necessitate

Example: "Accepting the premise          acknowledging that the current policy is ineffective."

Enumerate

To mention or list items one by one; to count or catalog systematically.

Similar definitions: list, itemize, catalog

Example: "The report          several factors that contributed to the project's failure."

Equivocal

Open to more than one interpretation; ambiguous or uncertain.

Similar definitions: ambiguous, vague, indeterminate

Example: "The study's results were         , with some data supporting the hypothesis and other data contradicting it."

Equivocate

To use ambiguous language so as to conceal the truth or avoid committing to a position.

Similar definitions: hedge, be evasive, waffle

Example: "When pressed on the details of the plan, the spokesperson began to         , offering vague and noncommittal answers."

Erroneous

Wrong; incorrect; based on faulty reasoning or information.

Similar definitions: incorrect, mistaken, fallacious

Example: "The conclusion was based on an          assumption about the rate of population growth."

Eschew

To deliberately avoid using or participating in; to abstain from.

Similar definitions: avoid, shun, forgo

Example: "The author          technical jargon in favor of accessible language for a general audience."

Esoteric

Intended for or understood by only a small number of people with specialized knowledge.

Similar definitions: arcane, obscure, recondite

Example: "The legal dispute centered on an          provision of tax law that few practitioners had ever encountered."

Exacerbate

To make a problem, bad situation, or negative feeling worse.

Similar definitions: worsen, aggravate, intensify

Example: "Critics argued that the policy would          economic inequality rather than reduce it."

Exculpate

To show or declare that someone is not guilty of wrongdoing; to clear of blame.

Similar definitions: exonerate, vindicate, absolve

Example: "The newly discovered evidence was sufficient to          the defendant of all charges."

Exemplary

Serving as a desirable model; representing the best of its kind.

Similar definitions: model, ideal, outstanding

Example: "The court cited the organization's          safety record as evidence that the industry could regulate itself."

Explicit

Stated clearly and in detail, leaving no room for confusion or doubt.

Similar definitions: clear, direct, unambiguous

Example: "The contract contained an          clause prohibiting either party from disclosing confidential information."

Extant

Still in existence; not destroyed, lost, or extinct.

Similar definitions: surviving, existing, remaining

Example: "The          documents from the colonial period provide valuable insight into early governance."

Extrapolate

To extend the application of known data or experience to an unknown situation by assuming existing trends will continue.

Similar definitions: project, generalize, predict

Example: "It would be unwise to          from a single year of data to predict long-term trends."

Fallacy

A mistaken belief based on unsound reasoning; a flaw in logical argumentation.

Similar definitions: misconception, error, flaw

Example: "The argument commits the          of assuming that because two events occurred together, one caused the other."

Feasible

Possible and practical to accomplish; likely to succeed.

Similar definitions: practicable, achievable, workable

Example: "The committee concluded that the proposed timeline was not          given the available resources."

Flaw

A weakness in reasoning or logic that undermines the validity of an argument.

Similar definitions: defect, weakness, shortcoming

Example: "The most significant          in the argument is its reliance on a sample that is not representative of the general population."

Foreseeable

Able to be predicted or expected based on current knowledge or trends.

Similar definitions: predictable, anticipated, expected

Example: "The court held that the risk of injury was          and that the company should have taken preventive measures."

Generalization

A broad statement or conclusion drawn from specific instances; can be a flaw when overly sweeping or unsupported.

Example: "The argument makes a hasty          by assuming that what is true of one community applies to all communities."

Groundless

Without basis in reason or evidence; unfounded.

Similar definitions: baseless, unfounded, unsubstantiated

Example: "The court dismissed the claim as         , noting that no credible evidence had been presented in its support."

Hearsay

Information received from other people that cannot be substantiated; in law, an out-of-court statement offered as evidence.

Example: "The judge ruled that the testimony was inadmissible          because the witness had no direct knowledge of the events."

Hypothesize

To put forward a supposition or proposed explanation as a starting point for further investigation.

Similar definitions: theorize, conjecture, postulate

Example: "The researchers          that the decline in bee populations was linked to increased pesticide use."

Hypothetical

Based on or involving a suggested idea or theory rather than actual facts; imagined for the purpose of argument.

Similar definitions: theoretical, supposed, assumed

Example: "The philosopher presented a          scenario to illustrate the moral dilemma at the heart of the debate."

Impediment

A hindrance or obstruction to progress or achievement.

Similar definitions: obstacle, barrier, hindrance

Example: "Lack of access to legal representation remains a significant          to justice for low-income defendants."

Impetus

The force or energy with which something moves; a driving force or motivation.

Similar definitions: stimulus, motivation, catalyst

Example: "The Supreme Court ruling provided the          for a nationwide movement to reform sentencing guidelines."

Implausible

Not seeming reasonable or probable; failing to convince.

Similar definitions: unlikely, unconvincing, far-fetched

Example: "The defense's explanation was considered          given the physical evidence at the scene."