joltier
/ˈdʒoʊltiər/
adjective
- More likely to cause sudden, rough movements; more bumpy or jerky.
- I prefer a smoother ride, so I avoid the joltier buses on that route.
- The back seat of the jeep is joltier than the front during off-road trips.
- This old train is much joltier than the new high-speed one.
Antonyms