8
outstanding(adjective, unusual, strange, superb, wonderful)
8
smashing(adjective, great, superb, wonderful, marvelous)
8
unbelievable(adjective, good, strange, superb, wonderful)
7
humongous(adjective, great, big, size, huge)
7
remarkable(adjective, unusual, strange, superb, wonderful)
7
striking(adjective, superb, wonderful, exceptional, marvelous)
7
surprising(adjective, amazing, strange, wonderful, marvelous)
7
towering(adjective, strong, great, high, huge)
7
whopping(adjective, great, slang, big, huge)
6
breathtaking(adjective, superb, wonderful, marvelous, fantastic)
6
extensive(adjective, strong, great, big, powerful)
6
extreme(high, excessive, huge, greatness, tall)
6
immeasurable(adjective, great, big, absolute, huge)
6
infinite(adjective, end, size, huge, vast)
6
mind-blowing(adjective, excellent, informal, superb, wonderful)
6
portentous
6
strange(adjective, extraordinary, unusual, superb, wonderful)
6
superlative(adjective, wonderful, exceptional, marvelous, terrific)
5
awe-inspiring(adjective, awful, superb, wonderful, marvelous)
5
brilliant(adjective, pleasant, superb, marvelous, fantastic)
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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>