Source : Webster's Revised Unabridged Dictionary (1913)

Introspective \In`tro*spec"tive\, a. [Cf. F. introspectif.]
   1. Inspecting within; seeing inwardly; capable of, or
      exercising, inspection; self-conscious.

   2. Involving the act or results of conscious knowledge of
      physical phenomena; -- contrasted with associational. --J.
      S. Mill.

Source : WordNet®

introspective
     adj : examining own sensory and perceptual experiences [syn: {introverted}]
           [ant: {extrospective}]