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60 Cards in this Set

  • Front
  • Back
obdurate
* stubborn
obeisance
bow
obelisk
tall column tapering and ending in a pyramid
obfuscate
confuse; muddle; cause confusion; make needlessly complex
oblique
indirect; slanting (deviating from the perpendicular or from a straight line)
oblivion
obscurity; forgetfulness
oblivious
inattentive or unmindful; wholly absorbed
obloquy
slander; disgrace; infamy
obnoxious
offensive
obscure
dark; vague; unclear
obscure
darken; make unclear
obsequious
slavishly attentive; servile; sycophantic
obsequy
funeral ceremony
obsidian
black volcanic rock
obsolete
outmoded
obstinate
stubborn; hard to control or treat
obstreperous
boisterous; noisy
obtrude
push (oneself or one's ideas) forward or intrude; butt in; stick out or extrude
obtuse
blunt; stupid
obviate
* make unnecessary; get rid of
Occident
the West
occlude
* shut; close
odious
hateful; vile
odium
detestation; hatefulness; disrepute
odoriferous
giving off an odor
officious
* meddlesome; excessively pushy in offering one's services
ogle
look at amorously; make eyes at
ominous
threatening
omnipotent
all-powerful
omniscient
all-knowing
onerous
* burdensome
onslaught
vicious assault
opalescent
iridescent; lustrous
opprobrium
* infamy; vilification
optician
maker and seller of eyeglasses
optimum
most favorable
optometrist
one who fits glasses to remedy visual defects
opus
work
oracular
prophetic; uttered as if with divine authority; mysterious or ambiguous
orator
public speaker
oratorio
dramatic poem set to music
ordain
decree or command; grant holy orders; predestine
ordinance
decree
ordination
ceremony conferring holy orders
orgy
wild, drunken revelry; unrestrained indulgence
orientation
act of finding oneself in society
ornithologist
scientific student of birds
orthography
correct spelling
oscillate
* vibrate pendulumlike; waver
osseous
made of bone; bony
ossify
change or harden into bone
ostensible
apparent; professed; pretended
ostentatious
* showy; pretentious; trying to attract attention
outmoded
no longer stylish; old-fashioned
outstrip
surpass; outdo
overbearing
bossy; arrogant; decisively important
overt
open to view
overweening
presumptuous; arrogant
overwrought
extremely agitated; hysterical
ovoid
egg-shaped