Source : Webster's Revised Unabridged Dictionary (1913)

Intrinsical \In*trin"sic*al\, a. [Formerly written
   {intrinsecal}.]
   1. Intrinsic.

   2. Intimate; closely familiar. [Obs.] --Sir H. Wotton.

Source : WordNet®

intrinsical
     adj : belonging to a thing by its very nature; "form was treated
           as something intrinsic, as the very essence of the
           thing"- John Dewey [syn: {intrinsic}] [ant: {extrinsic}]