Terrifically

(adv.) In a terrific manner.

Thesaurus Entries

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