1. 极好的;非常棒的;了不起的
If you describe something or someone as terrific, you are very pleased with them or very impressed by them.

2. 很多的;很大的;很强的
Terrific means very great in amount, degree, or intensity.

1. causing extreme terror

e.g. a terrifying wail

Synonym: terrifying

2. very great or intense

e.g. a terrific noise
a terrific thunderstorm storm
fought a terrific battle

3. extraordinarily good or great
used especially as intensifiers

e.g. 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

Synonym: fantasticgrandhowling(a)marvelousmarvellousrattling(a)tremendouswonderfulwondrous