Source : Webster's Revised Unabridged Dictionary (1913)

Acquisitive \Ac*quis"i*tive\, a.
   1. Acquired. [Obs.]

            He died not in his acquisitive, but in his native
            soil.                                 --Wotton.

   2. Able or disposed to make acquisitions; acquiring; as, an
      acquisitive person or disposition.

Source : WordNet®

acquisitive
     adj : eager to acquire and possess things especially material
           possessions or ideas; "an acquisitive mind"; "an
           aquisitive society in which the craving for material
           things seems never satisfied" [ant: {unacquisitive}]