oleaginous

/ˌˈoʊliˌˈædʒənəs/

Other forms: oleaginously

If your archenemy remarks on your oleaginous skin, she's not giving you a compliment. She's calling you oily-faced.

You can impress your friends by commenting on how disgustingly oleaginous your pizza is, or despair over the oleaginous state of an ocean bay after an oil spill. Either way, you're using a fancy word for greasy or oily. And if you run into a particularly slick car salesman, you can describe him as oleaginous too. The adjective oleaginous comes from the Latin root oleaginus, "of the olive."

Definitions of oleaginous

1. adjective

   containing an unusual amount of grease or oil
   “oleaginous seeds”

   synonyms: greasy, oily, sebaceous, unctuous

   fat, fatty

   containing or composed of fat
2. adjective

   unpleasantly and excessively suave or ingratiating in manner or speech
   “oleaginous hypocrisy”

   synonyms: buttery, fulsome, oily, smarmy, soapy, unctuous

   insincere

   lacking sincerity