1.Having an even surface, or a surface so even that no roughness or points can be perceived by the touch; not rough; as, smooth glass; smooth porcelain. "The outlines must be smooth, imperceptible to the touch, and even, without eminence or cavities."
2.Evenly spread or arranged; sleek; as, smooth hair.
3.Gently flowing; moving equably; not ruffled or obstructed; as, a smooth stream.
4.Flowing or uttered without check, obstruction, or hesitation; not harsh; voluble; even; fluent. "The only smooth poet of those times." "Waller was smooth; but Dryden taught to join The varying verse, the full-resounding line." "When sage Minerva rose, From her sweet lips smooth elocution flows."
5.Bland; mild; smoothing; fattering. "This smooth discourse and mild behavior oft Conceal a traitor."
6.(Mech. & Physics) Causing no resistance to a body sliding along its surface; frictionless. Note: Smooth is often used in the formation of self-explaining compounds; as, smooth-bodied, smooth-browed, smooth-combed, smooth-faced, smooth-finished, smooth-gliding, smooth-grained, smooth-leaved, smooth-sliding, smooth-speaking, smooth-woven, and the like.
...
