unsuitable vs irrelevant

unsuitable and irrelevant both are adjectives.

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

unsuitable (adjective)	irrelevant (adjective)
not conducive to good moral development	having no bearing on or connection with the subject at issue
not worthy of being chosen (especially as a spouse)
not meant or adapted for a particular purpose
not capable of being applied