Source : Webster's Revised Unabridged Dictionary (1913)

Antitypical \An`ti*typ"ic*al\, a.
   Of or pertaining to an antitype; explaining the type. --
   {An`ti*typ"ic*al*ly}, adv.

Source : WordNet®

antitypical
     adj : of or relating to an antitype [syn: {antitypic}]