Source : Webster's Revised Unabridged Dictionary (1913)

Contrariant \Con*tra"ri*ant\, a. [LL. contrarians, p. pr. of
   contrariare to oppose, fr. L. contrarius: cf. F. contrariant,
   p. pr. of contrarier to contradict. See {Contrary}.]
   Contrary; opposed; antagonistic; inconsistent; contradictory.
   [R.]

         The struggles of contrariant factions.   --Coleridge.