Source : Webster's Revised Unabridged Dictionary (1913)

Adaptive \A*dapt"ive\, a.
   Suited, given, or tending, to adaptation; characterized by
   adaptation; capable of adapting. --Coleridge. --
   {A*dapt"ive*ly}, adv.

Source : WordNet®

adaptive
     adj : having a capacity for adaptation; "the adaptive coloring of
           a chameleon" [syn: {adaptative}] [ant: {maladaptive}]