smarmy (adj.)

• adulatory
• bland
• buttery
• complimentary
• courtly
• fawning
• flattering
• fulsome
• glassy
• glossy
• gushing
• honeyed
• insincere
• insinuating
• mealymouthed
• obsequious
• oily
• oleaginous
• polished
• slick
• slimy
• smooth
• smooth-spoken
• smooth-tongued
• soapy
• sycophantic
• unctuous