Source : Webster's Revised Unabridged Dictionary (1913)

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

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

Source : WordNet®

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