208 entries under basic topic. ×
| innate(adjective, characteristic, body, reasonable, material) | |
| chief(adjective, importance, big, important, significant) | |
| prerequisite(noun, adjective, form, fix, pass) | |
| material(noun, adjective, drop, body, physical) | |
| necessity(noun, condition, want, need, heart) | |
| central(adjective, important, significant, original) | |
| cardinal(adjective, importance, important, significant, original) | |
| inborn(adjective, characteristic, reasonable, common, ordinary) | |
| deep-seated(adjective, characteristic, natural, original) | |
| integral(adjective, characteristic, body, importance, material) | |
| requirement(noun, form, fix, pass, position) | |
| core(adjective, support, action, base, importance) | |
| critical(adjective, severe, big, important, significant) | |
| inbred(adjective, characteristic, natural, individual) | |
| underlying(adjective, simple, plain, important, significant) | |
| constitutional(adjective, important, natural, surface) | |
| leading(adjective, feature, state, characteristic, importance) | |
| must(noun, adjective, right, want, need) | |
| needed(adjective, set, important, significant, capital) | |
| real(adjective, material, natural, genuine) |
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| APA | Smart Define. (2016). essential thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/essential/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "essential thesaurus" https://smartdefine.org/essential/thesaurus/synonyms (accessed September 21, 2026). |
| Harvard | Smart Define 2016, essential thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/essential/thesaurus/synonyms>. |
| MLA | Smart Define. "essential thesaurus" 31 March 2016. Web. 21 September 2026. <https://smartdefine.org/essential/thesaurus/synonyms> |