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):

frantic
    adj 1: excessively agitated; distraught with fear or other
           violent emotion; "frantic with anger and frustration";
           "frenetic screams followed the accident"; "a frenzied
           look in his eye" [syn: frantic, frenetic,
           phrenetic, frenzied]
    2: marked by uncontrolled excitement or emotion; "a crowd of
       delirious baseball fans"; "something frantic in their
       gaiety"; "a mad whirl of pleasure" [syn: delirious,
       excited, frantic, mad, unrestrained]

Moby Thesaurus II by Grady Ward, 1.0:

110 Moby Thesaurus words for "frantic":
   Dionysiac, abandoned, agitated, amok, anarchic, angry,
   at fever pitch, bacchic, bellowing, berserk, blustering,
   blusterous, blustery, carried away, chaotic, confused, corybantic,
   delirious, demoniac, desperate, disconcerted, distracted, distrait,
   distraught, ecstatic, enraptured, excitable, excited, fanatical,
   febrile, feral, ferocious, feverish, fierce, frenetic, frenzied,
   fulminating, furious, haggard, hectic, hellish, hog-wild, howling,
   hyperactive, hyperkinetic, hysteric, hysterical, in a dither,
   in a tizzy, in a transport, in hysterics, infatuated, infuriate,
   insane, insensate, intoxicated, intrusive, like one possessed, mad,
   madding, maenadic, maniac, maniacal, mindless, nervous, officious,
   orgasmic, orgastic, orgiastic, overanxious, overdesirous,
   overeager, overenthusiastic, overwrought, overzealous, pandemoniac,
   perfervid, perturbed, possessed, rabid, raging, rambling, ramping,
   ranting, ravening, raving, raving mad, ravished, rip-roaring,
   roaring, running mad, running wild, stark-raving mad, storming,
   stormy, tempestuous, transported, troublous, tumultuous, turbulent,
   ultrazealous, uncontrollable, uproarious, upset, violent,
   wandering, wild, wild-eyed, wild-looking, wrought up