Source : Webster's Revised Unabridged Dictionary (1913)

Incorporeality \In`cor*po`re*al"i*ty\, n.
   The state or quality of being incorporeal or bodiless;
   immateriality; incorporealism. --G. Eliot.

Source : WordNet®

incorporeality
     n : the quality of not being physical; not consisting of matter
         [syn: {immateriality}] [ant: {materiality}, {materiality}]