68 entries under primary topic. ×
| substratal(adjective, important, significant, original, essential) | |
| substrative(adjective, important, significant, original, essential) | |
| supporting(adjective, important, significant, original, essential) | |
| sustaining(adjective, important, significant, original, essential) | |
| theoretical(adjective, important, significant, original, essential) | |
| underived(adjective, important, significant, original, essential) | |
| underlying(adjective, important, significant, original, essential) | |
| deep-seated(original, basic) |
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| APA | Smart Define. (2015). major thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/major/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "major thesaurus" https://smartdefine.org/major/thesaurus/synonyms (accessed September 24, 2026). |
| Harvard | Smart Define 2015, major thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/major/thesaurus/synonyms>. |
| MLA | Smart Define. "major thesaurus" 6 July 2015. Web. 24 September 2026. <https://smartdefine.org/major/thesaurus/synonyms> |