Source : Webster's Revised Unabridged Dictionary (1913)

Excessive \Ex*cess"ive\, a. [Cf. F. excessif.]
   Characterized by, or exhibiting, excess; overmuch.

         Excessive grief [is] the enemy to the living. --Shak.

   Syn: Undue; exorbitant; extreme; overmuch; enormous;
        immoderate; monstrous; intemperate; unreasonable. See
        {Enormous} --{Ex*cess*ive*ly}, adv. -{Ex*cess"ive*ness},
        n.

Source : WordNet®

excessiveness
     n : immoderation as a consequence of going beyond sufficient or
         permitted limits [syn: {excess}, {inordinateness}]