Study 51 SAT vocabulary words beginning with O, with definitions, synonyms, antonyms, and contextual examples.
stubborn; stubbornly persistent in wrongdoing
make obscure; make obscure or unclear
a duty or responsibility to act
required; morally or legally constraining or binding
indirect; slanting or inclined in direction or course or position
destroy; mark for deletion, rub off, or erase
unconsciousness; the state of being disregarded or forgotten
unaware; (followed by 'to' or of?) lacking conscious awareness of
irritating; causing disapproval or protest
not well known or unclear
excessively obedient
think about something constantly; haunt like a ghost; pursue
stubbornly resistant
stick out; push to thrust outward
annoyingly noticeable
lacking sharpness or intelligence
prevent; do away with
happening from time to time
obstruct; occlude
fill; keep busy with
attacking; the action of attacking an enemy
intrusive; intrusive in a meddling or offensive manner
make up for; compensate for or counterbalance
threatening; threatening or foreshadowing evil or tragic developments
eating all types of food; feeding on both plants and animals
burdensome and difficult
continuous; currently happening
not transparent or translucent; not transmitting or reflecting light or radiant energy
a person on the opposing side
profit-seeker; a person who places expediency above principle
disgrace; state of disgrace resulting from public abuse
choose one option over another
positive thinker; a person disposed to take a favorable view of things
expecting positive outcomes
luxury; wealth as evidenced by sumptuous living
speaker; a person who delivers a speech or oration
trouble; a severe or trying experience
neatly arranged and organized
locate; be oriented
highly decorated or elaborate
following traditional beliefs
swing back and forth; be undecided about something
become rigid or fixed
showy and pretentious
bizarre; conspicuously or grossly unconventional or unusual
no longer fashionable
to exceed in cleverness; beat through cleverness and wit
dominate; bear too much
lie over; coincide partially or wholly
a small mistake or omission
obvious; open and observable; not secret or hidden