oleaginous

/ˌoʊliˈædʒɪnəs/
adjective
  1. Oily or greasy in texture or appearance.
    • His hands were oleaginous after working on the car engine.
    • The chef wiped the oleaginous residue off the pan.
    • The sauce had an oleaginous sheen from too much butter.
  2. Excessively flattering or ingratiating; smarmy.
    • She gave an oleaginous speech to win the boss's favor.
    • The salesman's oleaginous compliments made me uncomfortable.
    • His oleaginous smile seemed fake and insincere.
Antonyms
What does "oleaginous" mean? | whatsthatwordmean | whatsthatwordmean