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WordNet-OnlineFree dictionary and thesaurus of English. Definitions, synonyms, antonyms and more...
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Adjective unctuous has 1 sense
buttery, fulsome, oily, oleaginous, smarmy, unctuous - unpleasantly and excessively suave or ingratiating in manner or speech; "buttery praise"; "gave him a fulsome introduction"; "an oily sycophantic press agent"; "oleaginous hypocrisy"; "smarmy self-importance"; "the unctuous Uriah Heep"Antonym:  sincere (indirect, via insincere)
 
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