Synonyms|88Antonyms|46|Broader|0Narrower|0Related|634
1
conclusive
1
consequential(adjective, important, significant, serious, critical)
1
de rigueur(expression, adjective, significant, essential, basic)
1
deciding
1
decisive(adjective, significant, serious, essential, basic)
1
desperate
1
determinative
1
dire
1
exigent(adjective, significant, essential, basic, vital)
1
expedient(adjective, significant, essential, basic, vital)
1
fundamental(adjective, significant, essential, basic, vital)
1
hairy
1
hazardous
1
imperative(adjective, important, significant, serious, essential)
1
incumbent on(expression, adjective, significant, essential, basic)
1
indispensable(adjective, important, significant, serious, essential)
1
life-and-death(adjective, important, earthshaking)
1
magic
1
mandatory(adjective, significant, essential, basic, vital)
1
momentous(adjective, significant, serious, essential, critical)
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APASmart Define. (2015). all-important thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/all-important/thesaurus/synonyms
ChicagoSmart Define. 2015. "all-important thesaurus" https://smartdefine.org/all-important/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, all-important thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/all-important/thesaurus/synonyms>.
MLASmart Define. "all-important thesaurus" 10 April 2015. Web. 22 September 2026. <https://smartdefine.org/all-important/thesaurus/synonyms>