Stuck on a tricky crossword clue? Discover the answer to ‘Overly slick’!

Stuck on a tricky crossword clue? Discover the answer to ‘Overly slick’! - UNCTUOUS
Overly slick

1. Smarmy
2. Excessively flattering
3. Insincere charm
4. Slippery
5. Too oily
6. Fawning
7. Groveling
8. Hypocritical niceness
9. Slimy
10. Greasy

UNCTUOUS