canaliculate vs rugged

canaliculate and rugged both are adjectives.

Word	Noun	Adjective	Verb	Adverb
canaliculate	No	Yes	No	No
rugged	No	Yes	No	No

canaliculate (adjective)	rugged (adjective)
having thin parallel channels	sturdy and strong in constitution or construction; enduring
	having long narrow shallow depressions (as grooves or wrinkles) in the surface
	very difficult; severely testing stamina or resolution
	topographically very uneven