Source : Webster's Revised Unabridged Dictionary (1913)

Philosophic \Phil`o*soph"ic\, Philosophical \Phil`o*soph"ic*al\,
   a. [L. philosophicus: cf. F. philosophique.]
   Of or pertaining to philosophy; versed in, or imbued with,
   the principles of philosophy; hence, characterizing a
   philosopher; rational; wise; temperate; calm; cool. --
   {Phil`o*soph"ic*al*ly}, adv.

Source : WordNet®

philosophical
     adj 1: of or relating to philosophy or philosophers; "philosophical
            writing"; "a considerable knowledge of philosophical
            terminology" [syn: {philosophic}]
     2: characterized by the attitude of a philosopher; meeting
        trouble with level-headed detachment; "philosophical
        resignation"; "a philosophic attitude toward life" [syn: {philosophic}]
     3: characteristic of or imbued with the attitude of a
        philosopher or based on philosophy; "that breadth of
        outlook that distinguishes the philosophic mind"; "their
        differences were philosophical" [syn: {philosophic}] [ant:
         {nonphilosophical}]