Source : Webster's Revised Unabridged Dictionary (1913)

Wrongful \Wrong"ful\, a.
   Full of wrong; injurious; unjust; unfair; as, a wrongful
   taking of property; wrongful dealing. -- {Wrong"ful*ly}, adv.
   -- {Wrong"ful*ness}, n.

Source : WordNet®

wrongfulness
     n : that which is contrary to the principles of justice or law;
         "he feels that you are in the wrong" [syn: {wrong}] [ant:
          {right}, {right}]