powerlessly

from WordNet (r) 3.0 (2006)

powerlessly
    adv 1: in a powerless manner

from The Collaborative International Dictionary of English v.0.48

Powerless \Pow"er*less\, a.
   Destitute of power, force, or energy; weak; impotent; not
   able to produce any effect. -- {Pow"er*less*ly}, adv. --
   {Pow"er*less*ness}, n.
   [1913 Webster]