- having an even or level surface; having no roughness or projections that can be seen or felt
- having its projections leveled by wear: a smooth tire
- having an even consistency; without lumps: a smooth paste
- even, calm, or gentle in flow or movement: a smooth voyage
- free from interruptions, obstacles, difficulties, etc.: smooth progress
- not easily agitated or ruffled; calm; serene: a smooth temper
- free from hair, beard, etc.
- pleasing to the taste; not sharp or harsh; bland
- having an easy, gentle, flowing rhythm or sound
- suave, polished, or ingratiating, esp. in a flattering, insincere way
- Informal polished; competent: a smooth dancer
- Slang very pleasant, attractive, or enjoyable
- Mech. having relatively little friction
- Phonet. articulated without aspiration
Origin of smooth
Middle English smothe from Old English smoth, for earlier smethe from Germanic an unverified form smanthi from Indo-European an unverified form som-, together from base an unverified form sem-, together, same- to make level or even
- to remove the lumps from
- to remove wrinkles from by pressing
- to free from interruptions, difficulties, etc.; make easy
- to make calm or serene; soothe
- to make less crude; polish or refine
- something smooth; smooth part
- an act of smoothing
smooth away
smooth down
smooth over