OILY Meaning of OILY in English a. 1.Unctuous, greasy, oleaginous, sebaceous, fatty, fat, oleose, oleous.2.Unctuous, smooth, glib, lubricous, oleaginous, supple-chapped, plausible.3.Supple, compliant, subservient. Soule. Dictionary of English synonyms. Словарь английских синонимов. 2012