Wiktionary
a. Not smooth; rough.
WordNet
Usage examples of "unsmooth".
To-morrow, ere fresh morning streak the east With first approach of light, we must be risen, And at our pleasant labour, to reform Yon flowery arbours, yonder alleys green, Our walk at noon, with branches overgrown, That mock our scant manuring, and require More hands than ours to lop their wanton growth: Those blossoms also, and those dropping gums, That lie bestrown, unsightly and unsmooth, Ask riddance, if we mean to tread with ease.
But here's what would happen: Hill and Goldman or some equally unsmooth detectives would show up at Jizz to confront Jimmy's widow.
The floor was a narrow track between two bare shelves under a ragged arch of black, unsmoothed stone.
Flat, white, unsmoothed by any passage over or across it Here I stand But no longer.