The Collaborative International Dictionary of English v.0.48:

Contradictious \Con`tra*dic"tious\, a.
   1. Filled with contradictions; inconsistent. [Obs.]
      [1913 Webster]

   2. Inclined to contradict or cavil [Obs.] --Sharp. --
      Con`tra*dic"tious*ness, n. --Norris.
      [1913 Webster]