The Collaborative International Dictionary of English v.0.48:

Contrarious \Con*tra"ri*ous\, a. [LL. contrariosus: cf. OF.
   contrarios contralius.]
   Showing contrariety; repugnant; perverse. [Archaic] --Milton.
   [1913 Webster]

         She flew contrarious in the face of God. --Mrs.
                                                  Browning.
   [1913 Webster]

WordNet (r) 3.0 (2006):

contrarious
    adj 1: difficult to deal with [syn: contrarious, cross-
           grained]