210 entries under essential topic. ×
| natural(adjective, characteristic, body, simple, rough) | |
| primitive(adjective, body, simple, plain, material) | |
| radical(adjective, base, important, significant, last) | |
| central(adjective, important, significant, original) | |
| indispensable(adjective, characteristic, important, significant, natural) | |
| staple(noun, adjective, set, usual, regular) | |
| ultimate(adjective, surface, fundamental, supreme) | |
| critical(adjective, severe, important, original) | |
| crucial(adjective, important, significant, original) | |
| deep-seated(adjective, characteristic, natural, original) | |
| requisite(noun, adjective, important, want, significant) | |
| integral(adjective, characteristic, body, material, important) | |
| native(adjective, characteristic, rough, coarse, natural) | |
| important(adjective, significant, original, critical) | |
| base(adjective, last, boring, tedious) | |
| capital(adjective, prime, fundamental, key) | |
| constitutional(adjective, top, natural, prime) | |
| need(noun, want, fundamental, requirement) | |
| primordial(adjective, important, head, significant, beginning) | |
| bottom(noun, adjective, important, significant, original) |
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| APA | Smart Define. (2015). basic thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/basic/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "basic thesaurus" https://smartdefine.org/basic/thesaurus/synonyms (accessed September 22, 2026). |
| Harvard | Smart Define 2015, basic thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/basic/thesaurus/synonyms>. |
| MLA | Smart Define. "basic thesaurus" 10 April 2015. Web. 22 September 2026. <https://smartdefine.org/basic/thesaurus/synonyms> |