rockbound vs rock-ribbed

rockbound and rock-ribbed both are adjectives.

Word	Noun	Adjective	Verb	Adverb
rockbound	No	Yes	No	No
rock-ribbed	No	Yes	No	No

As adjectives, rockbound and rock-ribbed are synonyms defined as:

rockbound and rock-ribbed: abounding in or bordered by rocky cliffs or scarps

rockbound (adjective)	rock-ribbed (adjective)
abounding in or bordered by rocky cliffs or scarps	tradition-bound and obstinately opinionated
	abounding in or bordered by rocky cliffs or scarps