Source : Webster's Revised Unabridged Dictionary (1913)

Directive \Di*rect"ive\, a. [LL. directivus: cf. F. directif.]
   1. Having power to direct; tending to direct, guide, or
      govern; showing the way. --Hooker.

            The precepts directive of our practice in relation
            to God.                               --Barrow.

   2. Able to be directed; manageable. [Obs.]

            Swords and bows Directive by the limbs. --Shak.

Source : WordNet®

directive
     adj : showing the way by conducting or leading; imposing direction
           on; "felt his mother's directing arm around him"; "the
           directional role of science on industrial progress"
           [syn: {directing}, {directional}, {guiding}]
     n : a pronouncement encouraging or banning some activity; "the
         boss loves to send us directives"