irrelevant vs orthogonal

irrelevant and orthogonal both are adjectives.

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

irrelevant (adjective)	orthogonal (adjective)
having no bearing on or connection with the subject at issue	not pertinent to the matter under consideration
	having a set of mutually perpendicular axes; meeting at right angles
	statistically unrelated