Source : Webster's Revised Unabridged Dictionary (1913)

Experiential \Ex*pe`ri*en"tial\, a.
   Derived from, or pertaining to, experience. --Coleridge.

         It is called empirical or experiential . . . because it
         is divan to us by experience or observation, and not
         obtained as the result of inference or reasoning.
                                                  --Sir. W.
                                                  Hamiltion.
   -- {Ex*pe`ri*en"tial*ly}, adv. --DR. H. More.

Source : WordNet®

experiential
     adj 1: relating to or resulting from experience; "a personal,
            experiental reality"
     2: derived from experience or the experience of existence; "the
        rich experiential content of the teachings of the older
        philosophers"- Benjamin Farrington; "formal logicians are
        not concerned with existential matters"- John Dewey [syn:
        {existential}]