- Of the nature or quality of an unguent or ointment;
fatty; oily; greasy. - Having a smooth, greasy feel, as certain minerals. - Bland; suave; also, tender; fervid; as, an unctuous
speech; sometimes, insincerely suave or fervid.
Meaning of 'unctuous' (Princeton's WordNet)
1 . unctuous
[ s]
Meaning (1): - unpleasantly and excessively suave or ingratiating in manner or speech