The Oxford Thesaurus An A-Z Dictionary of Synonyms - greasyadj.

1) oily, sebaceous, fatty, fat, buttery, lardy, soapy, oleaginous, pinguid, butyraceous, saponaceous, waxy: Before curing, the hide is greasy with natural oils. 2) unctuous, oily, slippery, slithery, smooth, glib, fawning, slick, toadying, sycophantic, Slang Brit smarmy: Edna is so greasy, always trying to manoeuvre you into doing something for her.