134 entries under basic topic. ×
| natural(adjective, simple, material, living) | |
| requisite(adjective, important, significant, original, essential) | |
| clear(adjective, simple, pure, straightforward) | |
| connate(adjective, cause, absolute, fundamental) | |
| integral(adjective, body, material, important, significant) | |
| prefatory(simple, straightforward, first, previous) | |
| preliminary(adjective, simple, straightforward, first) | |
| previous(first, initial) | |
| substratal(adjective, simple, plain, important, significant) | |
| uncomplicated(adjective, simple, straightforward, unsophisticated) | |
| ABCs(simple, straightforward, uncomplicated) | |
| absolute(adjective, essential, prime, fundamental) | |
| amoebic(material, natural, living, functional) | |
| anatomical(material, natural, living, functional) | |
| animate(material, natural, living, functional) | |
| axiological(adjective, important, significant, original, essential) | |
| axiomatic(important, original, vital) | |
| biological(material, natural, living, functional) | |
| biotic(material, natural, living, functional) | |
| bottom-line(adjective, important, significant, original, essential) |
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| APA | Smart Define. (2016). primary thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/primary/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "primary thesaurus" https://smartdefine.org/primary/thesaurus/synonyms (accessed September 21, 2026). |
| Harvard | Smart Define 2016, primary thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/primary/thesaurus/synonyms>. |
| MLA | Smart Define. "primary thesaurus" 29 March 2016. Web. 21 September 2026. <https://smartdefine.org/primary/thesaurus/synonyms> |