unctuous
— Adjective
– English
~ 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"; "soapy compliments"
unctuously
— Adverb
– English
~ in an unctuous manner
unctuousness
— Noun
– English
~ smug self-serving earnestness