combativeness

from WordNet (r) 3.0 (2006)

combativeness
    n 1: a militant aggressiveness [syn: {combativeness},
         {militance}, {militancy}]

from The Collaborative International Dictionary of English v.0.48

Combativeness \Com"bat*ive*ness\, n.
   1. The quality of being combative; propensity to contend or
      to quarrel.
      [1913 Webster]

   2. (Phren.) A cranial development supposed to indicate a
      combative disposition.
      [1913 Webster]