134 entries under basic topic. ×
| root(adjective, original, fundamental, latent) | |
| simplest(simple, straightforward, fundamental, uncomplicated) | |
| simplex(simple, straightforward, uncomplicated) | |
| simplified(simple, straightforward, uncomplicated) | |
| structural(material, important, natural, original) | |
| substrative(adjective, important, significant, original, essential) | |
| supporting(adjective, important, significant, original, essential) | |
| sustaining(adjective, important, significant, original, essential) | |
| theoretical(adjective, important, significant, original, essential) | |
| uncomplex(simple, straightforward, uncomplicated) | |
| undeveloped(simple, fundamental, first, unsophisticated) | |
| vestigial(simple, fundamental, unsophisticated, elementary) | |
| animal(simple, living, unsophisticated, biological) | |
| bottom line(expression, important, significant, essential) | |
| cold(adjective, absolute, fundamental, key) | |
| concealed(adjective, original, fundamental, latent) | |
| hidden(adjective, original, fundamental, latent) | |
| ideal(adjective, absolute, fundamental, key) | |
| idiopathic | |
| immature(simple, fundamental, elementary) |
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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> |