GRE Vocabs Os

obdurate

(adj) Stubbornly refusing to change one's opinion or course of action.

obeisance

(n) Deferential (showing humble submission and respect) respect or homage.

obfuscated

(v) To make something unclear or difficult to understand.

objectionable

(adj) Causing disapproval or offense.

objective

(adj) Not influenced by personal feelings or opinions in considering and representing facts.

objurgation

(n) A harsh rebuke or criticism.

obloquy

(n) Strong public criticism or verbal abuse.

obsequious

(adj) Excessively obedient or attentive; servile.

obstinate

(adj) Stubbornly refusing to change one's opinion or chosen course of action.

obstreperous

(adj) Noisy and difficult to control.

obtrusive

(adj) Noticeable or prominent in an unwelcome or intrusive way.

occluded

(adj) Blocked or obstructed.

odious

(adj) Extremely unpleasant; repulsive.

officious

(adj) Assertive of authority in an annoyingly domineering way.

offset

(v) To counteract something by having an opposing force or effect.

ogle

(v) To stare at in a lecherous manner.

omission

(n) Something that has been left out or excluded.

omniscient

(adj) Knowing everything; having unlimited awareness or understanding.

onus

(n) A burden or responsibility.

opaque

(adj) Not able to be seen through; not transparent.

openhanded

(adj) Generous and giving.

opine

(v) To express an opinion.

opportune

(adj) Well-timed; occurring at an appropriate time.

opprobrium

(n) Harsh criticism or censure.

opulent

(adj) Rich and luxurious or lavish.

ornate

(adj) Made in an intricate shape or decorated with complex patterns.

orthodox

(adj) Conforming to established doctrine especially in religion.

oscillate

(v) To move or swing back and forth at a regular speed.

ossified

(adj) Turning into bone; becoming rigid or fixed.

ostentatious

(adj) Characterized by vulgar or pretentious display; designed to impress.

ostracized

(v) Excluded from a society or group.

otiose

(adj) Serving no practical purpose; useless.

outmoded

(adj) Old-fashioned; no longer in style.

outstrip

(v) To move faster than and overtake.

overshadow

(v) To tower above and cast a shadow over; to be more important than.

overweening

(adj) Excessively proud of oneself; presumptuous.