(adj): vs. smooth), unsmooth -- (having or caused by an irregular surface
(adj): vs. smooth), rocky, bumpy, jolty, jolting, jumpy -- (causing or characterized by jolts and irregular movements
(adj): liable to rock
(adj): vs. stable) -- (lacking stability or fixity or firmness
(adj): full of hardship or trials
(adj): vs. easy), hard -- (not easy; requiring great physical or mental effort to accomplish or comprehend or endure
Rocky Raccoon by the Beatles