The Collaborative International Dictionary of English v.0.48:
Substantiality \Sub*stan`ti*al"i*ty\, n. The quality or state of being substantial; corporiety; materiality. [1913 Webster] The soul is a stranger to such gross substantiality. --Glanvill. [1913 Webster]WordNet (r) 3.0 (2006):
substantiality n 1: the quality of being substantial or having substance [syn: substantiality, substantialness, solidness] [ant: insubstantiality]