terrific in WordNet English dictionary

1. extraordinarily good or great ; used especially as intensifiers
   "a fantastic trip to the Orient"; "the film was fantastic!"; "a howling success"; "a marvelous collection of rare books"; "had a rattling conversation about politics"; "a tremendous achievement"
   fantastic  grand  howling  marvelous  marvellous  rattling  terrific  tremendous  wonderful  wondrous 
   
2. causing extreme terror
   "a terrifying wail"
   terrific  terrifying 
   
3. very great or intense
   "a terrific noise"; "a terrific thunderstorm storm"; "fought a terrific battle"
   terrific