irrelevant vs tangential

irrelevant and tangential both are adjectives.

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

irrelevant (adjective)	tangential (adjective)
having no bearing on or connection with the subject at issue	of or relating to or acting along or in the direction of a tangent
	of superficial relevance if any