1. Abounding in or bordered by rocky cliffs or scarps
   "the rock-ribbed coast of Maine"
   - rockbound 
2. Tradition-bound and obstinately opinionated
   "rock-ribbed republican"
   - die-hard

See also: inflexible, rough, unsmooth

• reversely
• reverser
• reversibility
• reversible
• reversible process
• reversibly
• reversing thermometer
• reversion
• reversionary
• reversionary annuity
• reversioner
• reversionist
• reversive
• revert
• reverter
• revertible
• reverting
• revery
• revet
• revetement
• revetment
• review
• review article
• review copy
• reviewer