destructiveness

from WordNet (r) 3.0 (2006)

destructiveness
    n 1: the quality of causing destruction [ant:
         {constructiveness}]

from The Collaborative International Dictionary of English v.0.48

Destructiveness \De*struc"tive*ness\, n.
   1. The quality of destroying or ruining. --Prynne.
      [1913 Webster]

   2. (Phren.) The faculty supposed to impel to the commission
      of acts of destruction; propensity to destroy.
      [1913 Webster]