| flat(adjective, smooth, smoothness, pitfall) |
| glib(adjective, informal, facility, slick) |
| greased(adjective, lubricated) |
| level(adjective, smooth, smoothness) |
| oiled(adjective, lubricated) |
| oleaginous(adjective, unctuousness) |
| pinguid(adjective, unctuousness, oily) |
| skillful(adjective, smart, cunning, shrewd, clever) |
| ticklish(adjective, weak, delicate, uncertainty, uncertain) |
| unprincipled(adjective, bad, wrong, false, dishonest) |
| viscous(adjective, liquid, lubricated) |
| wet(adjective, moist, smooth, slick, liquid) |
| knowing(adjective, smooth, sharp, intelligent, cunning) |
| Machiavellian(adjective, negative, bad behavior) |
| acute(smooth, sharp, smart, intelligent, cunning) |
| arch |
| burnished(adjective, smooth) |
| butyraceous(adjective, unctuousness) |
| conniving(adjective, false, negative, dishonest, deceitful) |
| corrupt(adjective, bad, wrong, false, dishonest) |