64 entries under chief topic. ×
| vital(adjective, body, severe, importance, material) | |
| fundamental(noun, adjective, support, action, characteristic) | |
| basic(noun, adjective, characteristic, drop, part) | |
| necessary(noun, adjective, body, material, big) | |
| important(adjective, severe, importance, big, significant) | |
| primary(adjective, body, simple, plain, importance) | |
| crucial(adjective, severe, big, important, significant) | |
| indispensable(adjective, characteristic, important, significant, original) | |
| main(adjective, importance, important, significant, basic) | |
| principal(adjective, body, importance, material, big) | |
| imperative(noun, adjective, form, fix, pass) | |
| prime(adjective, body, importance, material, pure) | |
| momentous(adjective, feature, state, characteristic, importance) | |
| material(noun, adjective, drop, body, physical) | |
| central(adjective, important, significant, original, basic) | |
| cardinal(adjective, importance, important, significant, original) | |
| substantial(adjective, physical, importance, material, big) | |
| core(adjective, support, action, base, importance) | |
| critical(adjective, severe, big, important, significant) | |
| leading(adjective, feature, state, characteristic, importance) |
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| APA | Smart Define. (2016). essential thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/essential/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "essential thesaurus" https://smartdefine.org/essential/thesaurus/synonyms (accessed September 23, 2026). |
| Harvard | Smart Define 2016, essential thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/essential/thesaurus/synonyms>. |
| MLA | Smart Define. "essential thesaurus" 31 March 2016. Web. 23 September 2026. <https://smartdefine.org/essential/thesaurus/synonyms> |