O Flashcards
Oasis
A place that offers a pleasant relief
Oaf
A dunce or blockhead
Obdurate
Stubborn; hard-hearted
Obeisance
A bow or similar gesture expressing deep respect
Obfuscate
To confuse; to bewilder; to perplex
Oblation
An offering for religious or charitable purposes
Oblique
Slanted; indirect
Obliterate
To erase; to do away with
Obloquy
Strong disapproval; bad reputation resulting from public criticism
Obscurant
A person who tries to prevent the spread of knowledge
Obscure
Dim; not clear; not easily understood
Obsequious
Excessively submissive; overly attentive
Obsequy
A funeral rite or ceremony
Obsolescent
Going out of use; becoming extinct
Obstinate
Stubborn
Obstreperous
Boisterous; unruly
Obtrude
To push something toward or upon a person
Obtuse
Slow to comprehend
Obviate
To prevent
Occidental
Western; opposite of oriental
Occlude
To close; to shut; to block out
Occult
Hidden; secret; mysterious
Odious
Disgusting; hateful
Odoriferous
Giving off a displeasing or strong smell
Odyssey
A long journey
Offal
Garbage; waste parts
Officious
Meddling; interfering
Ogle
To look at with desire
Oligarchy
Government in which power is in the hands of only a few individuals
Olympian
Majestic
Omen
An event that indicates the future
Ominous
Threatening; indicating evil or harm
Omnifarious
Of all kinds
Omniscient
All-knowing
Onerous
Burdensome; heavy
Onslaught
A furious attack
Onus
A burden; a responsibility
Opaque
Not transparent; not letting light pass through
Opiate
Narcotic; causing sleep or relief
Oppress
To rule harshly; tyrannize
Opprobrious
Shameful; disgraceful
Opt
(For) to choose
Optimum
The best; most favorable
Opulent
Rich; luxurious
Oracular
Mysterious; predicting
Oration
A speech delivered on a special occasion
Ordain
To order; to establish; to arrange
Ordeal
Difficult or painful experience; a primitive form of trial
Ordinance
Law; regulation
Orifice
Mouth; opening
Ornate
Showy; highly decorated
Ornithology
Study of birds
Orthodox
Accepting the usual or traditional beliefs
Orthography
Correct spelling
Ossify
To change into bone; to become rigid
Ostensible
Apparent; conspicuous
Ostentatious
Showing off; boastful
Ostracize
To banish; to exclude
Oust
To drive out; to expel
Outwit
To trick; to get the better of
Overt
Open; aboveboard; not hidden
Ovine
Of or like a sheep
Ovoid
Egg-shaped