Source : Webster's Revised Unabridged Dictionary (1913)

Frenetical \Fre*net"ic*al\, a.
   Frenetic; frantic; frenzied. -- {Frenet"ic*al*ly}, adv.

Source : WordNet®

frenetically
     adv : in a very agitated manner; as if possessed by an evil spirit
           [syn: {demoniacally}]