Source : Webster's Revised Unabridged Dictionary (1913)

Estimative \Es"ti*ma*tive\, a. [Cf. F. estimatif.]
   1. Inclined, or able, to estimate; serving for, or capable of
      being used in, estimating.

            We find in animals an estimative or judicial
            faculty.                              --Sir M. Hale.

   2. Pertaining to an estimate. [R.]