Unctuous /(?; 135)/

Unc·tu·ous

Unctuous

a.
  1. Of the nature or quality of an unguent or ointment; fatty; oily; greasy.
  2. Having a smooth, greasy feel, as certain minerals.
  3. Bland; suave; also, tender; fervid; as, an unctuous speech; sometimes, insincerely suave or fervid.