defenselessness

from WordNet (r) 3.0 (2006)

defenselessness
    n 1: the property of being helpless in the face of attack [syn:
         {defenselessness}, {defencelessness}, {unprotectedness}]

from The Collaborative International Dictionary of English v.0.48

Defenseless \De*fense"less\, a.
   Destitute of defense; unprepared to resist attack; unable to
   oppose; unprotected. [Also spelled {defenceless}.]--
   {De*fense"less*ly}, adv. -- {De*fense"less*ness}, n.
   [1913 Webster]

   2. unarmed; used of persons or the military. {armed}
      [WordNet 1.5]