86 entries under great topic. ×

16
momentous(adjective, bad, excellent, extraordinary)
13
important(adjective, bad, excellent, extraordinary)
10
notable(adjective, extraordinary, importance, important)
8
noteworthy(adjective, extraordinary, important, lively)
7
signal(adjective, extraordinary, importance, important)
5
historic(adjective, important, lively, significant)
5
outstanding(adjective, excellent, superior, important)
5
remarkable(adjective, importance, lively, wonderful)
4
crucial(adjective, important, lively, significant)
4
decisive(adjective, important, lively, significant)
3
interesting(adjective, extraordinary, important, significant)
3
major(adjective, bad, excellent, superior)
3
unforgettable(adjective, extraordinary, importance, outstanding)
2
celebrated(adjective, bad, excellent, extraordinary)
2
critical(adjective, important, lively, significant)
2
illustrious(adjective, extraordinary, outstanding, prominent)
2
monumental(extraordinary, outstanding, remarkable, notable)
2
phenomenal(adjective, bad, excellent, superior)
2
prominent(adjective, importance, unusual, wonderful)
2
serious(extraordinary, unusual, important, significant)
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APASmart Define. (2015). eventful thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/eventful/thesaurus/synonyms
ChicagoSmart Define. 2015. "eventful thesaurus" https://smartdefine.org/eventful/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2015, eventful thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/eventful/thesaurus/synonyms>.
MLASmart Define. "eventful thesaurus" 14 April 2015. Web. 27 September 2026. <https://smartdefine.org/eventful/thesaurus/synonyms>