78 entries under significant topic. ×
| crucial(adjective, great, severe, extraordinary, big) | |
| important(adjective, great, severe, extraordinary, big) | |
| vital(adjective, great, severe, big, heavy) | |
| serious(adjective, hard, great, tough, severe) | |
| urgent(adjective, hard, direct, tough, severe) | |
| pivotal(adjective, important, serious, vital) | |
| pressing(adjective, hard, direct, tough, difficult) | |
| momentous(adjective, great, severe, extraordinary, big) | |
| essential(adjective, severe, big, important) | |
| decisive(adjective, great, severe, extraordinary, big) | |
| weighty(adjective, hard, hurt, great, tough) | |
| consequential(adjective, harsh, big, heavy, important) | |
| major(adjective, great, heavy, important) | |
| great(extraordinary, heavy, important, extreme) | |
| fundamental(adjective, severe, important, original) | |
| imperative(adjective, big, important, determined) | |
| key(adjective, important, essential, basic) | |
| main(adjective, original, essential, vital) | |
| trenchant(adjective, severe, keen, sharp, unpleasant) | |
| necessary(adjective, big, important, substantial) |
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| APA | Smart Define. (2016). critical thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/critical/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "critical thesaurus" https://smartdefine.org/critical/thesaurus/synonyms (accessed September 24, 2026). |
| Harvard | Smart Define 2016, critical thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/critical/thesaurus/synonyms>. |
| MLA | Smart Define. "critical thesaurus" 16 February 2016. Web. 24 September 2026. <https://smartdefine.org/critical/thesaurus/synonyms> |