Synonyms|88Antonyms|46|Broader|0Narrower|0Related|634

25 entries under serious topic. ×

7
essential(adjective, important, significant, critical)
6
crucial(adjective, important, significant, essential)
3
critical(adjective, important, grave, dangerous)
2
vital(adjective, important, significant, essential)
1
consequential(adjective, important, significant, critical)
1
decisive(adjective, significant, essential, basic)
1
imperative(adjective, important, significant, essential)
1
indispensable(adjective, important, significant, essential)
1
momentous(adjective, significant, essential, critical)
1
paramount(adjective, important, significant, essential)
1
pressing(adjective, significant, essential, basic)
1
significant(adjective, important, essential, critical)
1
urgent(adjective, important, significant, essential)
0
earth-shaking(adjective, important, critical, earthshaking)
0
earth-shattering(adjective, important, critical, earthshaking)
0
earthshaking(adjective, important, critical)
0
earthshattering(adjective, important, critical, earthshaking)
0
exceptive(adjective, significant, vital, grave)
0
extremely important(expression, adjective, important, critical)
0
high-priority(adjective, significant, vital, grave)
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APASmart Define. (2015). all-important thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/all-important/thesaurus/synonyms
ChicagoSmart Define. 2015. "all-important thesaurus" https://smartdefine.org/all-important/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, all-important thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/all-important/thesaurus/synonyms>.
MLASmart Define. "all-important thesaurus" 10 April 2015. Web. 25 September 2026. <https://smartdefine.org/all-important/thesaurus/synonyms>