2
stupefying(extraordinary, strange, marvelous, amazing, astonishing)
2
thundering
2
too much(expression, adjective, pleasant, informal, superb)
2
unheard-of(adjective, pleasant, unusual, strange, superb)
2
unprecedented
2
unusual
2
utmost(adjective, informal, extraordinary, strange, wonderful)
2
vasty(adjective, size)
2
wide(great, total, big, absolute, huge)
1
imposing(adjective, strong, powerful, high, excessive)
1
A-OK(noun, adjective, superb, wonderful, marvelous)
1
absolutely
1
abysmal
1
ace(adjective, good, bad, great, sound)
1
aces(noun, adjective, superb, wonderful, marvelous)
1
admirable(adjective, good, bad, great, sound)
1
amaze
1
amazingly
1
astonishingly
1
astoundingly
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APASmart Define. (2015). stupendous thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/stupendous/thesaurus/synonyms
ChicagoSmart Define. 2015. "stupendous thesaurus" https://smartdefine.org/stupendous/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, stupendous thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/stupendous/thesaurus/synonyms>.
MLASmart Define. "stupendous thesaurus" 14 April 2015. Web. 25 September 2026. <https://smartdefine.org/stupendous/thesaurus/synonyms>