Synonyms|679Antonyms|135|Broader|7Narrower|8Related|331

136 entries under significant topic. ×

1
constitutive(important, capital, essential, critical)
1
earnest(big, heavy, substantial, valuable)
1
earth-shaking(adjective, important, serious, critical)
1
earth-shattering(important, serious, critical, historic)
1
far-reaching(severe, big, important, substantial)
1
first(adjective, important, original, basic)
1
foremost(important, capital, essential, vital)
1
foundational(important, original, basic, vital)
1
front-page(great, big, heavy, substantial)
1
grass-roots(important, original, basic, vital)
1
grievous(adjective, great, tough, severe, heavy)
1
hazardous(adjective, heavy, serious, vital)
1
importunate(adjective, big, important, substantial)
1
integral(important, serious, essential, critical)
1
intrinsic(adjective, important, original, essential)
1
marked(big, important, powerful, substantial)
1
meat-and-potatoes(important, original, essential, critical)
1
memorable(adjective, important, lively, outstanding)
1
of moment(expression, big, important, substantial)
1
of note(expression, big, substantial, valuable)
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APASmart Define. (2016). crucial thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/crucial/thesaurus/synonyms
ChicagoSmart Define. 2016. "crucial thesaurus" https://smartdefine.org/crucial/thesaurus/synonyms (accessed September 30, 2026).
HarvardSmart Define 2016, crucial thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/crucial/thesaurus/synonyms>.
MLASmart Define. "crucial thesaurus" 11 March 2016. Web. 30 September 2026. <https://smartdefine.org/crucial/thesaurus/synonyms>