smooth

adjective, smooth·er, smooth·est.

1. free from projections or unevenness of surface; not rough: smooth wood; a smooth road.
2. generally flat or unruffled, as a calm sea.
3. free from hairs or a hairy growth: a smooth cheek.
4. of uniform consistency; free from lumps, as a batter, sauce, etc.
5. free from or proceeding without abrupt curves, bends, etc.: a smooth ride.
6. allowing or having an even, uninterrupted movement or flow: smooth driving.
7. easy and uniform, as motion or the working of a machine.
8. having projections worn away: a smooth tire casing.
9. free from hindrances or difficulties: a smooth day at the office.
10. noting a metal file having the minimum commercial grade of coarseness for a single-cut file.Compare dead-smooth.
11. undisturbed, tranquil, or equable, as the feelings, temper, etc.; serene: a smooth disposition.
12. elegant, easy, or polished: smooth manners.
13. ingratiatingly polite or suave: That salesman is a smooth talker.
14. free from harshness, sharpness, or bite; bland or mellow, as cheese or wine.
15. not harsh to the ear, as sound: the smooth music of a ballroom dance band.
16. Phonetics. without aspiration.