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

53 entries under fundamental topic. ×

4
required(adjective, important, significant, serious, capital)
4
underlying(adjective, important, original, basic, vital)
3
elementary(adjective, important, significant, original, essential)
3
needed(adjective, important, significant, capital, essential)
3
needful(adjective, important, significant, original, capital)
3
prime(adjective, important, significant, original, essential)
3
radical(adjective, great, important, significant, original)
2
basal(adjective, important, significant, original, essential)
2
bottom-line(adjective, important, significant, original, essential)
2
elemental(adjective, important, significant, original, essential)
2
original(important, significant, basic, vital)
2
primitive(adjective, important, significant, original, essential)
1
bottom(adjective, important, significant, original, essential)
1
capital(adjective, important, serious, essential, critical)
1
coal-and-ice(important, essential, critical, basic)
1
intrinsic(adjective, important, significant, original, essential)
1
leading(adjective, important, serious, capital, essential)
1
name(important, essential, critical, imperative)
1
name-of-the-game(important, essential, critical, basic)
1
necessitous(important, capital, essential, vital)
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APASmart Define. (2016). crucial thesaurus. Retrieved October 1, 2026, from https://smartdefine.org/crucial/thesaurus/synonyms
ChicagoSmart Define. 2016. "crucial thesaurus" https://smartdefine.org/crucial/thesaurus/synonyms (accessed October 1, 2026).
HarvardSmart Define 2016, crucial thesaurus, Smart Define, viewed 1 October, 2026, <https://smartdefine.org/crucial/thesaurus/synonyms>.
MLASmart Define. "crucial thesaurus" 11 March 2016. Web. 1 October 2026. <https://smartdefine.org/crucial/thesaurus/synonyms>