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

• taxation
• taxer
• taxi
• taxi dancer
• taxi fare
• taxi rank
• taxi strip
• taxicab
• Taxidea
• Taxidea taxus
• taxidermist
• taxidermy
• taxidriver
• taximan
• taximeter
• taxing
• taxis
• taxistand
• taxiway
• taxman
• Taxodiaceae
• Taxodium
• Taxodium ascendens
• Taxodium distichum
• Taxodium mucronatum