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