73 entries under critical topic. ×

12
indispensable(adjective, characteristic, importance, significant, significance)
10
fundamental(adjective, significant, essential, basic, main)
9
noble(adjective, prominent, loud, eminent, influential)
9
renowned(adjective, great, big, famous, outstanding)
8
exigent(adjective, serious, essential, vital, feature)
8
famed(adjective, famous, outstanding, significant)
7
life-and-death(adjective, heavy, important, serious)
7
life-or-death(adjective, essential, fundamental, imperative)
6
basic(adjective, significant, essential, vital, main)
6
requisite(adjective, significant, original, essential)
5
capital(adjective, bad, great, excellent, fine)
5
commanding(adjective, fine, significant, grand)
5
compelling(adjective, serious, essential, vital)
5
august(adjective, great, excellent, fine, intense)
4
required(adjective, essential, vital, fundamental)
4
talented(adjective, eminent, characteristic, fine, importance)
3
acute(adjective, severe, heavy, significant, serious)
3
burning(adjective, serious, essential, vital)
3
excellent(adjective, bad, great, fine, sensible)
3
glorious(adjective, great, famous, significant, brilliant)
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APASmart Define. (2016). important thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/important/thesaurus/synonyms
ChicagoSmart Define. 2016. "important thesaurus" https://smartdefine.org/important/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2016, important thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/important/thesaurus/synonyms>.
MLASmart Define. "important thesaurus" 29 March 2016. Web. 25 September 2026. <https://smartdefine.org/important/thesaurus/synonyms>