3
ass-licking
3
blubbery(adjective, rich, greasy)
3
cajoling
3
courtly(adjective, kind, smooth, easy, friendly)
3
crafty(adjective, false, deceitful, lying, untruthful)
3
crooked(adjective, false, deceitful, lying, untruthful)
3
cunning(adjective, false, deceitful, lying, untruthful)
3
deceptive(adjective, smooth, false, deceitful, lying)
3
disingenuous
3
gooey(adjective, sentimental)
3
gushing
3
insinuating(slippery, sycophantic, obsequious, greasy, fatty)
3
lardaceous(adjective, unctuousness)
3
low(adjective, mean, submissive, subservient, sycophantic)
3
mealymouthed
3
perfidious(adjective, false, deceitful, lying, untruthful)
3
plausible
3
rich
3
shifty(adjective, false, deceitful, lying, untruthful)
3
treacherous(adjective, false, deceitful, lying, untruthful)
11 years ago|14k views|share |citing 
APASmart Define. (2015). unctuous thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/unctuous/thesaurus/synonyms
ChicagoSmart Define. 2015. "unctuous thesaurus" https://smartdefine.org/unctuous/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, unctuous thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/unctuous/thesaurus/synonyms>.
MLASmart Define. "unctuous thesaurus" 14 April 2015. Web. 20 September 2026. <https://smartdefine.org/unctuous/thesaurus/synonyms>