Unc"tu*ous (?; 135), a. [F. onctueux,
LL. unctuosus, fr. L. unctus anointment, fr. ungere,
unctum, to anoint. See Unguent.] 1. Of
the nature or quality of an unguent or ointment; fatty; oily; greasy.
"The unctuous cheese." Longfellow.
2. Having a smooth, greasy feel, as certain
minerals.
3. Bland; suave; also, tender; fervid; as, an
unctuous speech; sometimes, insincerely suave or fervid.
-- Unc"tu*ous*ly, adv. --
Unc"tu*ous*ness, n.