jumpy

(s) being in a tense state edgy, highly strung, high-strung, nervy, overstrung, restive, uptight, jittery,
(a) causing or characterized by jolts and irregular movements
- a rough ride
bumpy, jolting, jolty, rocky, rough,

edgy highly strung high-strung nervy overstrung restive uptight jittery bumpy jolting jolty rocky rough

smooth

jump

jumbo