- Definitions|2
- Thesaurus|1.3k
- Abbreviations|0
| stupefying(extraordinary, strange, marvelous, amazing, astonishing) | |
| thundering | |
| too much(expression, adjective, pleasant, informal, superb) | |
| unheard-of(adjective, pleasant, unusual, strange, superb) | |
| unprecedented | |
| unusual | |
| utmost(adjective, informal, extraordinary, strange, wonderful) | |
| vasty(adjective, size) | |
| wide(great, total, big, absolute, huge) | |
| imposing(adjective, strong, powerful, high, excessive) | |
| A-OK(noun, adjective, superb, wonderful, marvelous) | |
| absolutely | |
| abysmal | |
| ace(adjective, good, bad, great, sound) | |
| aces(noun, adjective, superb, wonderful, marvelous) | |
| admirable(adjective, good, bad, great, sound) | |
| amaze | |
| amazingly | |
| astonishingly | |
| astoundingly |
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| APA | Smart Define. (2015). stupendous thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/stupendous/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "stupendous thesaurus" https://smartdefine.org/stupendous/thesaurus/synonyms (accessed September 25, 2026). |
| Harvard | Smart Define 2015, stupendous thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/stupendous/thesaurus/synonyms>. |
| MLA | Smart Define. "stupendous thesaurus" 14 April 2015. Web. 25 September 2026. <https://smartdefine.org/stupendous/thesaurus/synonyms> |