601-650 Flashcards
Oblation
[Noun] The act of contributing to the funds of a church or charity
Obligatory
[Adj] Required by compulsion or convention
Oblique
[Adj] Slanting or inclined in direction or course or position
Obliquity
[Noun] The quality of being deliberately vague or deceptive
Obliterate
[Verb] Remove completely from recognition or memory
Oblivion
[Noun] The state of being disregarded or forgotten
Obloquy
[Noun] Very strong public criticism or blame
Obnoxious
[Adj] Causing disapproval or protest
Obscure
[Adj] Not clearly understood or expressed
Obsequious
[Adj] Attempting to win favor from influential people by flattery
Obsession
[Noun] An unhealthy and compulsive preoccupation with something
Obsidian
[Noun] Glass formed by the cooling of lava without crystallization
Obsolete
[Adj] No longer in use
Obstetrician
[Noun] A physician specializing in childbirth
Obstreperous
[Adj] Noisily and stubbornly defiant
Obtrude
[Verb] Become noticeable in an unwelcome or intrusive way
Obtrusive
[Adj] Sticking out; protruding
Obtuse
[Adj] Of an angle, between 90 and 180 degrees
Obviate
[Verb] Do away with
Obvious
[Adj] Easily perceived by the senses or grasped by the mind
Occult
[Noun] Supernatural forces and events and beings collectively
Oculist
[Noun] A person skilled in testing for defects of vision
Odious
[Adj] Extremely repulsive or unpleasant
Odium
[Noun] Hate coupled with disgust
Odoriferous
[Adj] Emitting a smell, especially an unpleasant smell
Odorous
[Adj] Having a characteristic aroma
Offal
[Noun] Viscera and trimmings of a butchered animal
Offertory
[Noun] The offerings of the congregation at a religious service
Officious
[Adj] Intrusive in a meddling or offensive manner
Ogle
[Verb] Stare or look at, especially with amorous intentions
Olfactory
[Adj] Of or relating to the sense of smell
Oligarchy
[Noun] A political system governed by a few people
Ominous
[Adj] Threatening or foreshadowing evil or tragic developments
Omnipotent
[Adj] Having unlimited power
Omnipresent
[Adj] Existing everywhere at once
Omniscient
[Adj] Knowing, seeing, or understanding everything
Omnivorous
[Adj] Feeding on both plants and animals
Onerous
[Adj] Difficult to do or needing a lot of effort
Onomatopoeia
[Noun] Using words that imitate the sound they denote
Onslaught
[Noun] An offensive against an enemy
Onus
[Noun] A burdensome or difficult concern
Opalescent
[Adj] Having a play of lustrous rainbow colors
Opaque
[Adj] Not transmitting or reflecting light or radiant energy
Opiate
[Noun] A narcotic drug
Opportune
[Adj] Suitable or advantageous especially for a particular purpose
Opportunist
[Noun] A person who places expediency above principle
Opprobious
[Adj] Expressing offensive reproach
Opprobium
[Noun] A state of extreme dishonor
Optician
[Noun] A worker who makes glasses for remedying defects of vision
Optimum
[Adj] Most desirable possible under a restriction