the act of smoothing; "he gave his hair a quick smooth"
lacking obstructions or difficulties; "the bill's path through the legislature was smooth and orderly"
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"
of motion that runs or flows or proceeds without jolts or turbulence; "a smooth ride"
of the margin of a leaf shape; not broken up into teeth
make smooth or smoother, as if by rubbing; "smooth the surface of the wood"
free from obstructions; "smooth the way towards peace negotiations"
not clearly defined or easy to perceive or understand; "indistinct shapes in the gloom"; "an indistinct memory"; "only indistinct notions of what to do"
based on custom rather than documentation; "an unwritten law"; "rites...so ancient that they well might have had their unwritten origins in Aurignacian times"- J.L.T.C.Spence
characterized by oppressive heat and humidity; "the summer was sultry and oppressive"; "the stifling atmosphere"; "the sulfurous atmosphere preceding a thunderstorm"