Synonyms|215Antonyms|67|Broader|2Narrower|0Related|580

24 entries under main topic. ×

7
grave(adjective, importance, extremely significant)
7
remarkable(adjective, importance, extremely significant)
6
exciting(adjective, importance, extremely significant)
6
relevant(adjective, importance, extremely significant)
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APASmart Define. (2016). historic thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/historic/thesaurus/synonyms
ChicagoSmart Define. 2016. "historic thesaurus" https://smartdefine.org/historic/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2016, historic thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/historic/thesaurus/synonyms>.
MLASmart Define. "historic thesaurus" 29 March 2016. Web. 26 September 2026. <https://smartdefine.org/historic/thesaurus/synonyms>