[adjective] -ier, -iest [informal] [disapproving] - extremely polite, respectful or helpful in a way which is intended to be attractive but which fails to seem sincereShe was trying to be friendly, but she just seemed smarmy and insincere.He has a smarmy charm that some women find irresistible.
SMARMY
Meaning of SMARMY in English
Cambridge English vocab. Кембриджский английский словарь. 2012