oleaginous
o-le-ag-i-nous
adjective
Excessively smooth, unctuous, or insincerely flattering in manner or speech.
"His oleaginous compliments made her feel uneasy."
adjective
Having an oily or greasy texture or appearance; containing much oil.
"The sauce left an oleaginous film on the plate."
Thesaurus
Synonyms: greasy, oily, fatty, sebaceous, fat, buttery, fulsome, smarmy, soapy, insincere, unctuous