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.
Milton.
Waller was smooth; but Dryden taught to join The varying verse, the
full-resounding line.
Pope.
When sage Minerva rose, From her sweet lips smooth elocution flows.
Gay.