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

86 entries under basic topic. ×

6
principal(adjective, great, big, important, significant)
6
requisite(adjective, important, significant, original, essential)
5
exigent(adjective, big, heavy, important, significant)
5
life-or-death(important, essential, critical, fundamental)
4
chief(adjective, great, big, heavy, important)
4
required(adjective, important, significant, serious, capital)
4
underlying(adjective, important, original, vital)
3
elementary(adjective, important, significant, original, essential)
3
needed(adjective, important, significant, capital, essential)
3
needful(adjective, important, significant, original, capital)
3
obligatory(adjective, important, significant, essential, critical)
3
paramount(adjective, important, significant, original, serious)
3
prime(adjective, important, significant, original, essential)
3
radical(adjective, great, important, significant, original)
3
rudimentary(adjective, important, significant, original)
2
basal(adjective, important, significant, original, essential)
2
bottom-line(adjective, important, significant, original, essential)
2
compulsory(adjective, important, significant, essential, critical)
2
constitutional(adjective, important, significant, original)
2
elemental(adjective, important, significant, original, essential)
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APASmart Define. (2016). crucial thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/crucial/thesaurus/synonyms
ChicagoSmart Define. 2016. "crucial thesaurus" https://smartdefine.org/crucial/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2016, crucial thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/crucial/thesaurus/synonyms>.
MLASmart Define. "crucial thesaurus" 11 March 2016. Web. 23 September 2026. <https://smartdefine.org/crucial/thesaurus/synonyms>