Source : Webster's Revised Unabridged Dictionary (1913)

Realness \Re"al*ness\, n.
   The quality or condition of being real; reality.

Source : WordNet®

realness
     n : the state of being actual or real; "the reality of his
         situation slowly dawned on him" [syn: {reality}, {realism}]
         [ant: {unreality}]