Of the nature or quality of an unguent or ointment; fatty; oily; greasy.
- Characterized by affected, exaggerated, or insincere earnestness: "the unctuous, complacent court composer who is consumed with envy and self-loathing” ( Rhoda Koenig).
- Having the quality or characteristics of oil or ointment; slippery.
- Containing or composed of oil or fat.
- Abundant in organic materials; soft and rich: unctuous soil.