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.]
-- Un*con*trol*la*ble*ness, n. -- Un*con*trol*la*bly, adv.
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uncontrollably
adv : in an uncontrolled manner; "she laughed uncontrollably"