the GNU version of the Collaborative International Dictionary of English
n. The state or quality of being immaterial or incorporeal.
The Century Dictionary and Cyclopedia
n. The character or quality of being immaterial or spiritual: as, the immateriality of the soul.
n. An immaterial existence or essence; that which is without matter.
n. The character of being unimportant, nonessential, or irrelevant.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
n. complete irrelevance requiring no further consideration
n. the quality of not being physical; not consisting of matter
Word Usage
"In another place he says, "We must necessarily conclude from this alone, that because I exist, and have the idea of immateriality, that is to say, of a most perfect being, the existence is therefore most evidently demonstrated.""