a. | 1. | Astonishing; wonderful; amazing; especially, astonishing in magnitude or elevation; |
Adj. | 1. | stupendous - so great in size or force or extent as to elicit awe; "colossal crumbling ruins of an ancient temple"; "has a colossal nerve"; "a prodigious storm"; "a stupendous field of grass"; "stupendous demand" Synonyms: colossal, prodigious |