The Collaborative International Dictionary of English v.0.48:

Frantic \Fran"tic\, a. [OE. frentik, frenetik, F. frentique, L.
   phreneticus, from Gr. ?. See Frenzy, and cf. Frenetic,
   Phrenetic.]
   Mad; raving; furious; violent; wild and disorderly;
   distracted.
   [1913 Webster]

         Die, frantic wretch, for this accursed deed! --Shak.
   [1913 Webster]

         Torrents of frantic abuse.               --Macaulay.
   -- Fran"tic*al*ly, adv. -- Fran"tic*ly, adv. --Shak. --
   Fran"tic*ness, n. --Johnson.
   [1913 Webster]

WordNet (r) 3.0 (2006):

frantically
    adv 1: in an uncontrolled manner; "she fought back madly" [syn:
           madly, frantically]

Moby Thesaurus II by Grady Ward, 1.0:

27 Moby Thesaurus words for "frantically":
   angrily, deliriously, demonically, desperately, distractedly,
   fanatically, fiercely, frenetically, frenziedly, furiously, hotly,
   insensately, like mad, like one possessed, madly, mindlessly,
   rabidly, riotously, severely, stormily, tempestuously, troublously,
   turbulently, uncontrollably, uproariously, violently, wildly