Synonyms|276Antonyms|78|Broader|2Narrower|1Related|478

20 entries under historic topic. ×

7
grave(adjective, important, significant, serious, vital)
4
considerable(adjective, important, significant)
4
fateful(adjective, important, significant, key)
3
notable(adjective, important, significant)
3
substantial(adjective, important, significant)
2
big(adjective, important, significant)
1
earth-shaking(adjective, important, significant, serious, critical)
1
earth-shattering(important, significant, serious, critical)
1
meaningful(important, significant, serious, critical)
1
outstanding(important, significant, main, middle)
0
chips are down(expression, idiom, important, significant)
0
epochal(important, significant)
0
eventful(important, significant)
0
far-reaching(important, significant)
0
heavy(important, significant)
0
heavy number(expression, important, significant)
0
important serious(expression, important, significant)
0
material(important, significant)
0
memorable(important, significant)
0
of moment(expression, important, significant)
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APASmart Define. (2016). pivotal thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/pivotal/thesaurus/synonyms
ChicagoSmart Define. 2016. "pivotal thesaurus" https://smartdefine.org/pivotal/thesaurus/synonyms (accessed September 30, 2026).
HarvardSmart Define 2016, pivotal thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/pivotal/thesaurus/synonyms>.
MLASmart Define. "pivotal thesaurus" 29 March 2016. Web. 30 September 2026. <https://smartdefine.org/pivotal/thesaurus/synonyms>