124 entries under significant topic. ×
| required(adjective, important, serious, essential) | |
| cardinal(adjective, importance, important, original) | |
| pressing(adjective, big, heavy, important) | |
| influential(adjective, great, energetic, importance, important) | |
| outstanding(adjective, great, importance, important) | |
| primary(adjective, body, importance, material, big) | |
| principal(adjective, body, great, importance, material) | |
| central(adjective, important, original, essential) | |
| needed(adjective, set, right, important) | |
| chief(adjective, importance, big, important) | |
| major(adjective, great, heavy, important) | |
| paramount(adjective, importance, important, original) | |
| prime(adjective, body, importance, material, important) | |
| decisive(adjective, severe, big, important) | |
| compelling(adjective, energetic, important, lively, active) | |
| compulsory(adjective, set, important, essential) | |
| forceful(adjective, strong, tough, intense, energetic) | |
| needful(adjective, set, important, original) | |
| radical(adjective, great, importance, important) | |
| strenuous(adjective, strong, tough, intense, energetic) |
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| APA | Smart Define. (2015). vital thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/vital/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "vital thesaurus" https://smartdefine.org/vital/thesaurus/synonyms (accessed September 27, 2026). |
| Harvard | Smart Define 2015, vital thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/vital/thesaurus/synonyms>. |
| MLA | Smart Define. "vital thesaurus" 2 November 2015. Web. 27 September 2026. <https://smartdefine.org/vital/thesaurus/synonyms> |