1.Definition: (music) without breaks between notes; smooth and connected

Related Adjective(s):legato

2.Definition: (of a body of water) free from disturbance by heavy waves

"A smooth channel crossing"

Related Adjective(s):placid, quiet, still, tranquil, unruffled

3.Definition: having a surface free from roughness or bumps or ridges or irregularities

"Smooth skin", "A smooth tabletop", "Smooth fabric", "A smooth road", "Water as smooth as a mirror"

4.Definition: lacking obstructions or difficulties

"The bill's path through the legislature was smooth and orderly"

5.Definition: of motion that runs or flows or proceeds without jolts or turbulence

"A smooth ride"

6.Definition: of the margin of a leaf shape; not broken up into teeth

7.Definition: smooth and unconstrained in movement

"A long, smooth stride"

Related Adjective(s):fluent, fluid, liquid

8.Definition: smoothly agreeable and courteous with a degree of sophistication

"The manager pacified the customer with a smooth apology for the error"

Related Adjective(s):bland, politic, suave