- Definitions|2
- Thesaurus|1.1k
- Abbreviations|0
66 entries under serious topic. ×
| desperate(adjective, severe, intense, important, significant) | |
| dire(adjective, severe, important, significant, extreme) | |
| principal(adjective, great, big, important, significant) | |
| exigent(adjective, big, heavy, important, significant) | |
| great(extraordinary, heavy, important, significant, extreme) | |
| life-and-death(adjective, heavy, important, critical) | |
| severe(adjective, tough, big, heavy, deep) | |
| clamorous(adjective, important, essential, critical) | |
| crying(adjective, important, essential, critical) | |
| determining(adjective, big, important, significant, substantial) | |
| meaningful(adjective, great, severe, important, significant) | |
| notable(adjective, great, heavy, important, lively) | |
| required(adjective, important, significant, capital) | |
| conclusive(adjective, important, determined, significant) | |
| heavyweight(adjective, great, big, heavy, important) | |
| paramount(adjective, important, significant, original) | |
| radical(adjective, great, important, significant, original) | |
| dangerous(adjective, great, severe, significant) | |
| burning(adjective, important, essential, critical) | |
| influential(adjective, great, big, important, powerful) |
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| APA | Smart Define. (2016). crucial thesaurus. Retrieved October 1, 2026, from https://smartdefine.org/crucial/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "crucial thesaurus" https://smartdefine.org/crucial/thesaurus/synonyms (accessed October 1, 2026). |
| Harvard | Smart Define 2016, crucial thesaurus, Smart Define, viewed 1 October, 2026, <https://smartdefine.org/crucial/thesaurus/synonyms>. |
| MLA | Smart Define. "crucial thesaurus" 11 March 2016. Web. 1 October 2026. <https://smartdefine.org/crucial/thesaurus/synonyms> |