1. extraordinarily good or great; used especially as intensifiers

- a marvelous collection of rare books

Similar word(s): extraordinary, fantastic, grand, howling, marvelous, rattling, terrific, tremendous, wonderful, wondrous, raging

2. being or having the character of a miracle

Similar word(s): supernatural, marvelous, miraculous

3. too improbable to admit of belief

Similar word(s): incredible, unbelievable, improbable, marvelous, tall

Sentences with marvellous as an adjective:

- I went to a marvellous party last week.