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

37 entries under significant topic. ×

1
dominant(important, main, middle, mid)
1
earth-shaking(adjective, important, serious, critical)
1
earth-shattering(important, serious, critical, historic)
1
historic
1
meaningful(important, serious, critical, historic)
1
outstanding(important, main, middle, historic)
1
predominant(adjective, important, main, middle)
0
chips are down(expression, idiom, important, historic)
0
epochal(important, historic)
0
eventful(important, historic)
0
far-reaching(important, historic)
0
heavy(important, historic)
0
heavy number(expression, important, historic)
0
important serious(expression, important, historic)
0
material(important, historic)
0
memorable(important, historic)
0
of moment(expression, important, historic)
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APASmart Define. (2016). pivotal thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/pivotal/thesaurus/synonyms
ChicagoSmart Define. 2016. "pivotal thesaurus" https://smartdefine.org/pivotal/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2016, pivotal thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/pivotal/thesaurus/synonyms>.
MLASmart Define. "pivotal thesaurus" 29 March 2016. Web. 29 September 2026. <https://smartdefine.org/pivotal/thesaurus/synonyms>