Synset

unpleasantly and excessively suave or ingratiating in manner or speech
<adj.all>   freq. cnt.: 1 freq. cnt.: 1

buttery

fulsome

oily

oleaginous

smarmy

soapy

unctuous

sample sentences

"buttery praise"
"gave him a fulsome introduction"
"an oily sycophantic press agent"
"oleaginous hypocrisy"
"smarmy self-importance"
"the unctuous Uriah Heep"
"soapy compliments"