Source : Webster's Revised Unabridged Dictionary (1913)

Calvinistic \Cal`vin*is"tic\, Calvinistical \Cal`vin*is"tic*al\,
   a.
   Of or pertaining to Calvin, or Calvinism; following Calvin;
   accepting or Teaching Calvinism. ``Calvinistic training.''
   --Lowell.

Source : WordNet®

Calvinistic
     adj : of or relating to or characteristic of Calvinism or its
           adherents [syn: {Calvinist}, {Calvinistical}]