
Unctuous
Insincerity
Unctuous behavior often implies dishonesty or pretending to be nice.
His unctuous compliments felt empty and deceitful.
Hidden Motives
The word is used when someone is overly friendly for self-serving reasons.
The salesman's unctuous demeanor made me skeptical.
Positive to Negative
'Unctuous' often starts with a positive impression then shifts to a negative feeling.
I was put off by his unctuous charm; it seemed fake.
Compare with
FawnFlatterGreasyIngratiateInsincereOilySmarmySycophantic
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