The Collaborative International Dictionary of English v.0.48:
Supernaturalness \Su`per*nat"u*ral*ness\, n. The quality or state of being supernatural. [1913 Webster]WordNet (r) 3.0 (2006):
supernaturalness n 1: the quality of being attributed to power that seems to violate or go beyond natural forces [syn: supernaturalism, supernaturalness]