terrifically

from WordNet (r) 3.0 (2006)

terrifically
    adv 1: (used as an intensifier) extremely well; "her voice is
           superbly disciplined"; "the colors changed wondrously
           slowly" [syn: {wonderfully}, {wondrous}, {wondrously},
           {superbly}, {toppingly}, {marvellously}, {terrifically},
           {marvelously}]

from The Collaborative International Dictionary of English v.0.48

Terrifically \Ter*rif"ic*al*ly\, adv.
   In a terrific manner.
   [1913 Webster]

from Moby Thesaurus II by Grady Ward, 1.0

41 Moby Thesaurus words for "terrifically":
      alarmingly, almighty, appallingly, astoundingly, awfully,
      disconcertingly, dismayingly, divinely, dreadfully, exceedingly,
      exquisitely, fearfully, frightfully, gloriously, horrendously,
      horribly, horridly, horrifically, horrifyingly, immensely, just,
      magnificently, marvelously, mightily, mighty, only too, powerful,
      powerfully, pretty, quite, real, really, right, shockingly, so,
      startlingly, superbly, terribly, tremendously, very, wonderfully

[email protected]