Unctuous

ли́гав

lígav

(of a person: profusely polite, especially in an insincerely earnest and unpleasant manner)

ма́слен

máslen

(of a liquid, etc.: having the nature or properties of an unguent or ointment — see also oily, greasy)

ма́стен

másten

(of a liquid, etc.: having the nature or properties of an unguent or ointment — see also oily, greasy)