The Collaborative International Dictionary of English v.0.48:

Prospective \Pro*spec"tive\, n.
   1. The scene before or around, in time or in space; view;
      prospect. --Sir H. Wotton.
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   2. A perspective glass. [Obs.] --Chaucer. Beau. & Fl.
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The Collaborative International Dictionary of English v.0.48:

Prospective \Pro*spec"tive\, a. [L. prospectivus: cf. F.
   prospectif. See Prospect, n.]
   1. Of or pertaining to a prospect; furnishing a prospect;
      perspective. [Obs.]
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            Time's long and dark prospective glass. --Milton.
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   2. Looking forward in time; acting with foresight; -- opposed
      to retrospective.
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            The French king of Sweden are circumspect,
            industrious, and prospective, too, in this affair.
                                                  --Sir J.
                                                  Child.
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   3. Being within view or consideration, as a future event or
      contingency; relating to the future: expected; as, a
      prospective benefit.
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            Points on which the promises, at the time of
            ordination, had no prospective bearing. --W. Jay.
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WordNet (r) 3.0 (2006):

prospective
    adj 1: of or concerned with or related to the future;
           "prospective earnings"; "a prospective mother"; "a
           prospective bride"; "the statute is solely prospective in
           operation" [ant: retrospective]