以下是近几年gre考试真题中经常出现和常考的形容词词汇，不单是gre考试，很多英语考试中经常考察形容词的英译英。接下来的几天，小编会按照字母开头的顺序整理一些gre考试真题常见形容词词汇，供大家复习用。

　　obdurate :: stubborn

　　obese :: fat

　　oblique :: slanting; deviating from the perpendicular or from a straight line

　　obnoxious :: offensive

　　obsequious :: slavishly attentive; servile; sycophantic

　　obsolete :: outmoded

　　obtrusive :: pushing toward

　　obtuse :: blunt; stupid

　　occult :: mysterious; secret; supernatural

　　odious :: hatul

　　odoriferous :: giving off an order

　　odorous :: having an odor

　　officious :: meddlesome; excessively trying to please

　　olfactory :: concerning the sense of smell

　　ominous :: threatening

　　omnipotent :: all-powerful

　　omniscient :: all-knowing

　　omnivorous :: eating both plant and animal food; devouring everything

　　onerous :: burdensome

　　opalescent :: iridescent

　　opaque :: dark; not transparent

　　opportune :: timely; well chosen

　　opprobrious :: disgracul

　　ornate :: excessively decorated; highly decorated

　　ostensible :: apparent; professed; pretended

　　ostentatious :: showy; pretentious

　　overt :: open to view

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