1) Abstractness 2) Impalpability 3) Incorporeality 4) Intangibility 5) Intangibleness 6) Unimportance 7) Unreality 1) Astral plane 2) Immaterialness 3) Incorporeity 4) Inextension 5) Irrelevance 6) Irrelevancy 7) Not consisting of matter 8) Something immaterial 9) Spirituality 
• (n.) The state or quality of being immaterial or incorporeal; as, the immateriality of the soul.
Im`ma·te`ri·al'i·ty noun ; plural Immaterialities . [ Confer French immatérialit é.] The state or quality of being immaterial or incorporeal; as, the immateriality of the soul. 
[n] - complete irrelevance requiring no further consideration 2. [n] - the quality of not being physical
incorporeality noun the quality of not being physical; not consisting of matter
(Scholastic) Immaterial substances are the human soul and the subsistent forms, the angels. The rational faculties of the human soul, intellect and will are called immaterial and believed to need no bodily organ for their performances, although they depend on the senses for their activities. Their immateriality is proved by their capacity of becom....
state or character of being immaterial. · something immaterial.