abstractness vs immateriality

abstractness and immateriality both are nouns.

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

As nouns, immateriality is a hypernym of abstractness; that is, immateriality is a word with a broader meaning than abstractness:

abstractness: the quality of being considered apart from a specific instance or object
immateriality: the quality of not being physical; not consisting of matter

Other hypernyms of abstractness include incorporeality.

abstractness (noun)	immateriality (noun)
the quality of being considered apart from a specific instance or object	the quality of not being physical; not consisting of matter
	complete irrelevance requiring no further consideration