Oleaginous vs. Unctuous — What's the Difference?

Of or relating to oil.

Excessively ingratiating or insincerely earnest

Falsely or smugly earnest; unctuous

Containing or composed of oil or fat.

Oily, greasy.

Having the quality or characteristics of oil or ointment; slippery.

(of manner or speech) Falsely or affectedly earnest; persuasively suave.

Abundant in organic materials; soft and rich

Having the nature or qualities of oil; oily; unctuous.

Of a liquid, semisolid, or other substance: having the nature or properties of an unguent or ointment; greasy, oily.

Unpleasantly and excessively suave or ingratiating in manner or speech;

Having fat or oil present; fatty, greasy, oily.

Containing an unusual amount of grease or oil;

Of an aroma or taste, or a beverage (such as coffee or wine) or food (such as gravy, meat, or sauce): having layers of concentrated, velvety flavour; lush, rich.

Of soil: soft and sticky.

(figuratively) Of a person:

Complacent, self-satisfied, smug.

Profusely polite, especially in an insincere and unpleasant manner.

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.

Unpleasantly and excessively suave or ingratiating in manner or speech;