unctuous in French
unctuous in French
onctueux
(of a liquid, semisolid, or other substance) Having the nature or properties of an unguent or ointment; greasy, oily.
doucereux
Profusely polite, especially in an insincere and unpleasant manner.
mielleux
Profusely polite, especially in an insincere and unpleasant manner.
patelin
Profusely polite, especially in an insincere and unpleasant manner.