Synonyms|285Antonyms|76|Broader|4Narrower|0Related|306

87 entries under basic topic. ×

1
all-important(adjective, important, significant, serious, essential)
1
axiological(important, significant, original, vital)
1
axiomatic(important, significant, original, vital)
1
bottom(adjective, important, significant, original, essential)
1
coal-and-ice(important, essential, critical, fundamental)
1
constitutional(characteristic, important, significant, original, essential)
1
constitutive(important, capital, essential, critical)
1
decisive(adjective, important, significant, essential, critical)
1
deep-seated(characteristic, original, essential, primary)
1
first(important, significant, original, serious)
1
foundational(important, significant, original, vital)
1
grass-roots(important, significant, original, vital)
1
latent(adjective, characteristic, natural, original, essential)
1
major(important, significant, original, vital)
1
meat-and-potatoes(important, significant, original, essential, critical)
1
momentous(adjective, important, significant, substantial, serious)
1
name-of-the-game(important, essential, critical, fundamental)
1
nitty-gritty(adjective, important, original, essential, critical)
1
original(characteristic, important, significant, essential)
1
prime(adjective, important, significant, original, serious)
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APASmart Define. (2015). indispensable thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/indispensable/thesaurus/synonyms
ChicagoSmart Define. 2015. "indispensable thesaurus" https://smartdefine.org/indispensable/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, indispensable thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/indispensable/thesaurus/synonyms>.
MLASmart Define. "indispensable thesaurus" 10 April 2015. Web. 23 September 2026. <https://smartdefine.org/indispensable/thesaurus/synonyms>