Synonyms|92Antonyms|1|Broader|0Narrower|0Related|3

28 entries under significant topic. ×

2
critical(important, serious, historic)
2
heavy number(expression, important, historic)
2
momentous(adjective, important, historic)
1
big(important, historic)
1
chips are down(expression, idiom, important, historic)
1
consequential(important, serious, critical, historic)
1
crucial(important, serious, critical, historic)
1
epochal(important, historic)
1
eventful(important, historic)
1
fateful(important, historic)
1
historic
1
important serious(expression, important, historic)
1
material(important, historic)
1
meaningful(important, serious, critical, historic)
1
memorable(important, historic)
1
of moment(expression, important, historic)
1
outstanding(important, historic)
1
pivotal(important, serious, critical, historic)
1
substantial(important, historic)
1
vital(important, serious, critical, historic)
<12>
For more, visit Earth-shattering on Power Thesaurus
13 years ago|897 views|share |citing 
APASmart Define. (2013). earth-shattering thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/earth-shattering/thesaurus/synonyms
ChicagoSmart Define. 2013. "earth-shattering thesaurus" https://smartdefine.org/earth-shattering/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2013, earth-shattering thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/earth-shattering/thesaurus/synonyms>.
MLASmart Define. "earth-shattering thesaurus" 17 June 2013. Web. 28 September 2026. <https://smartdefine.org/earth-shattering/thesaurus/synonyms>