1. Causing or characterized by jolts and irregular movements
   - rough, rocky, jolty, jolting, jumpy 
2. Covered with or full of bumps
   "a bumpy country road"

Derived forms: bumpiest, bumpier

See also: bump, bumpiness, rough, unsmooth

Encyclopedia: Bumpy

• impressiveness
• impressment
• imprest
• imprimatur
• imprimis
• imprint
• imprinting
• imprison
• imprisoned
• imprisonment
• impro
• improbability
• improbable
• improbableness
• improbably
• improbity
• impromptu
• improper
• improper fraction
• improperly
• improperness
• impropriety
• improv
• improvability
• improvable