The Collaborative International Dictionary of English v.0.48:

Wrongness \Wrong"ness\, n.
   The quality or state of being wrong; wrongfulness; error;
   fault.
   [1913 Webster]

         The best great wrongnesses within themselves. --Bp.
                                                  Butler.
   [1913 Webster]

         The rightness or wrongness of this view. --Latham.
   [1913 Webster]

WordNet (r) 3.0 (2006):

wrongness
    n 1: inappropriate conduct [syn: inappropriateness,
         wrongness] [ant: appropriateness, rightness]
    2: contrary to conscience or morality [ant: rightness]
    3: the quality of not conforming to fact or truth [syn:
       incorrectness, wrongness] [ant: correctness,
       rightness]