64 entries under stupendous topic. ×

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world-class(adjective, bad, great, excellent, extraordinary)
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signal(adjective, solid, extraordinary, unusual, strange)
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leading(adjective, wonderful, exceptional, marvelous, terrific)
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pronounced(adjective, wonderful, exceptional, marvelous, terrific)
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APASmart Define. (2015). phenomenal thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/phenomenal/thesaurus/synonyms
ChicagoSmart Define. 2015. "phenomenal thesaurus" https://smartdefine.org/phenomenal/thesaurus/synonyms (accessed September 30, 2026).
HarvardSmart Define 2015, phenomenal thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/phenomenal/thesaurus/synonyms>.
MLASmart Define. "phenomenal thesaurus" 10 April 2015. Web. 30 September 2026. <https://smartdefine.org/phenomenal/thesaurus/synonyms>