(noun, adjective, verb, adverb)


1. having a surface free from roughness or bumps or ridges or irregularities

- smooth skin

- a smooth tabletop

- smooth fabric

Similar word(s): even, ironed, fine, slippery, slippy, creaseless, uncreased, fast, glassy, seamless, unlined, unseamed, aerodynamic, flowing, sleek, streamlined, velvet, velvety

2. smoothly agreeable and courteous with a degree of sophistication

- the manager pacified the customer with a smooth apology for the error

Similar word(s): diplomatic, diplomatical, bland, politic, suave

3. of the margin of a leaf shape; not broken up into teeth

Similar word(s): simple, unsubdivided, compound, entire, repand, sinuate, undulate, unnotched, untoothed

4. smooth and unconstrained in movement

- a long, smooth stride

Similar word(s): graceful, fluent, fluid, liquid

5. (music) without breaks between notes; smooth and connected

Similar word(s): legato

6. of motion that runs or flows or proceeds without jolts or turbulence

- a smooth ride

7. lacking obstructions or difficulties

- the bill's path through the legislature was smooth and orderly

Similar word(s): easy

8. (of a body of water) free from disturbance by heavy waves

- a smooth channel crossing

Similar word(s): calm, placid, quiet, still, tranquil, unruffled

Sentences with smooth as an adjective:

- We hope for a smooth transition to the new system.


1. Smoothly.


1. the act of smoothing

- he gave his hair a quick smooth

Definition categories: act, accomplishment, achievement


1. make smooth or smoother, as if by rubbing

- smooth the surface of the wood

Similar word(s): smoothen

Definition categories: contact

2. make (a surface) shine

Similar word(s): polish, shine, smoothen

Definition categories: contact, beautify, embellish, fancify, prettify

3. free from obstructions

- smooth the way towards peace negotiations

Definition categories: possession, disembarrass, free, rid