inapplicable vs unsuitable

inapplicable and unsuitable both are adjectives.

Word	Noun	Adjective	Verb	Adverb
inapplicable	No	Yes	No	No
unsuitable	No	Yes	No	No

As adjectives, inapplicable and unsuitable are synonyms defined as:

inapplicable (adjective)	unsuitable (adjective)
not capable of being applied	not conducive to good moral development
	not worthy of being chosen (especially as a spouse)
	not meant or adapted for a particular purpose
	not capable of being applied