Source : Webster's Revised Unabridged Dictionary (1913)

Communicative \Com*mu"ni*ca*tive\, a. [Cf. F. Communicatif, LL.
   communicativus.]
   Inclined to communicate; ready to impart to others.

         Determine, for the future, to be less communicative.
                                                  --Swift.

Source : WordNet®

communicative
     adj 1: of or relating to communication; "communicative arts"
     2: able or tending to communicate; "was a communicative person
        and quickly told all she knew"- W.M.Thackeray [syn: {communicatory}]
        [ant: {uncommunicative}]