immaterial vs immateriality

immaterial is not a noun while immateriality is a noun.

Word	Noun	Adjective	Verb	Adverb
immaterial	No	Yes	No	No
immateriality	Yes	No	No	No

immaterial (noun)	immateriality (noun)
	the quality of not being physical; not consisting of matter
	complete irrelevance requiring no further consideration

immaterial (adjective)	immateriality (adjective)
not consisting of matter
of no importance or relevance especially to a law case
without material form or substance
not pertinent to the matter under consideration
(often followed by `to') lacking importance; not mattering one way or the other