oily
adjective
[ ˈɔɪli ]
• containing oil.
• "taramasalata and hummus are both oily and rich"
• (of a person or their behaviour) unpleasantly smooth and ingratiating.
• "his oily smile"
Similar:
unctuous,
fawning,
ingratiating,
smooth,
smooth-talking,
fulsome,
flattering,
glib,
obsequious,
sycophantic,
soapy,
oleaginous,
servile,
subservient,
smarmy,
slimy,
sucky,
saponaceous,