191 entries under adjective topic. ×

11
acute(severe, heavy, important, significant)
11
weighty(great, tough, severe, big)
10
compelling(important, significant, serious, essential)
10
fateful(severe, important, lively, significant)
10
indispensable(important, significant, original, serious)
9
consequential(big, heavy, important, lively)
9
deciding(important, decide, critical)
7
all-important(important, significant, serious, essential)
7
climacteric(important, critical, acute, safety)
7
determinative(important, decide, conclusive)
6
desperate(severe, intense, important, significant)
6
all important(expression, idiom)
6
cardinal(important, significant, original, essential)
6
dire(severe, important, significant, extreme)
6
heavy(great, tough, severe, extraordinary)
6
high-priority(important, critical)
6
of the essence(expression, idiom)
6
primary(big, important, significant, original)
6
principal(great, big, important, significant)
6
requisite(important, significant, original, essential)
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APASmart Define. (2016). crucial thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/crucial/thesaurus/synonyms
ChicagoSmart Define. 2016. "crucial thesaurus" https://smartdefine.org/crucial/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2016, crucial thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/crucial/thesaurus/synonyms>.
MLASmart Define. "crucial thesaurus" 11 March 2016. Web. 29 September 2026. <https://smartdefine.org/crucial/thesaurus/synonyms>