frequently_asked_questions_files/Oxford Thesaurus.pdf

(mentally) retarded, boneheaded, lumpish, loutish, oafish,
simple, simple-minded: Luke is a bit too obtuse to get the
point of the story.
obvious adj. clear, plain, apparent, patent, perceptible, evident,
self-evident, clear-cut, manifest, palpable, (much) in evidence,
conspicuous, open, visible, overt, ostensible, pronounced,
prominent, glaring, undeniable, unconcealed, unhidden, unsubtle,
distinct, simple, bald, bald-faced, straightforward, direct,
self-explanatory, indisputable, unmistakable or unmistakeable:
There are obvious flaws in the fabric. The reason you were
refused seemed obvious to me.
obviously adv. clearly, plainly, apparently, patently, evidently, simply,
certainly, of course, undeniable, unmistakably or unmistakeably,
indubitably, doubtless(ly): You are obviously the right person
for the assignment.
15.3 occasion...
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occasion n. 1 time, moment, circumstance, incident, occurrence,
opportunity, chance, opening, advantage: I took the occasion of
the inquiry to leave town. 2 reason, cause, call,
justification, ground(s), warrant, provocation, prompting,
impulse, stimulus, incitement, inducement: Tom gave David no
occasion to doubt his honesty. 3 event, function, happening,
affair, observance, commemoration, ceremony, celebration, gala,
party,: Grandpapa's ninetieth birthday was a great occasion.
This hall is saved for important occasions. 4 on occasion. See
occasionally, below.
--v. 5 give rise to, bring about, cause, bring on, effect,
prompt, provoke, evoke, call forth, elicit, call up, induce,
impel, create, generate, engender, produce, make (for): An
increase in the inflation rate occasions a decrease in the value
of money.
occasional
adj. 1 intermittent, irregular, periodic, random, sporadic,
infrequent, casual, incidental: They staged occasional raids on
the arsenal. He works as an occasional farm hand. 2 additional,