70 entries under primary topic. ×
| important(adjective, great, severe, importance, heavy) | |
| essential(adjective, body, severe, importance, material) | |
| crucial(adjective, great, severe, big, heavy) | |
| key(adjective, importance, important, significant, original) | |
| necessary(adjective, body, material, big, important) | |
| organic(adjective, important, active, significant, natural) | |
| indispensable(adjective, important, significant, original, serious) | |
| momentous(adjective, severe, importance, big, heavy) | |
| fundamental(adjective, body, material, important, significant) | |
| requisite(adjective, important, significant, original, essential) | |
| basic(adjective, body, material, important, significant) | |
| significant(adjective, great, importance, big, heavy) | |
| integral(adjective, body, importance, material, important) | |
| weighty(adjective, great, severe, importance, big) | |
| main(adjective, top, importance, important, significant) | |
| consequential(adjective, importance, heavy, important, significant) | |
| cardinal(adjective, importance, important, significant, original) | |
| outstanding(adjective, great, importance, important, significant) | |
| principal(adjective, body, great, importance, material) | |
| central(adjective, important, significant, original, essential) |
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| APA | Smart Define. (2015). vital thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/vital/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "vital thesaurus" https://smartdefine.org/vital/thesaurus/synonyms (accessed September 25, 2026). |
| Harvard | Smart Define 2015, vital thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/vital/thesaurus/synonyms>. |
| MLA | Smart Define. "vital thesaurus" 2 November 2015. Web. 25 September 2026. <https://smartdefine.org/vital/thesaurus/synonyms> |