uncontrollably

from WordNet (r) 3.0 (2006)

uncontrollably
    adv 1: in an uncontrolled manner; "she laughed uncontrollably"

from The Collaborative International Dictionary of English v.0.48

Uncontrollable \Un`con*trol"la*ble\, a.
   1. Incapable of being controlled; ungovernable; irresistible;
      as, an uncontrollable temper; uncontrollable events.
      [1913 Webster]

   2. Indisputable; irrefragable; as, an uncontrollable maxim;
      an uncontrollable title. [R.] --Swift.
      [1913 Webster] -- {Un`con*trol"la*ble*ness}, n. --
      {Un`con*trol"la*bly}, adv.
      [1913 Webster]