70 entries under primary topic. ×
| basal(adjective, body, material, important, significant) | |
| bottom(adjective, important, significant, original, essential) | |
| bottom-line(adjective, important, significant, original, essential) | |
| controlling(adjective, top, essential, core, key) | |
| elemental(adjective, body, material, important, significant) | |
| foundational(adjective, important, significant, original, essential) | |
| grass-roots(adjective, important, significant, original, essential) | |
| intrinsic(adjective, important, significant, natural, original) | |
| meat-and-potatoes(adjective, important, significant, original, essential) | |
| nitty-gritty(adjective, important, original, essential, basic) | |
| original(adjective, body, material, important, significant) | |
| predominant(adjective, top, essential, core, key) | |
| preeminent(adjective, great, top, important, serious) | |
| primordial(adjective, important, significant, original, essential) | |
| root(adjective, original, basic, fundamental, hidden) | |
| 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) |
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| APA | Smart Define. (2015). vital thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/vital/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "vital thesaurus" https://smartdefine.org/vital/thesaurus/synonyms (accessed September 27, 2026). |
| Harvard | Smart Define 2015, vital thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/vital/thesaurus/synonyms>. |
| MLA | Smart Define. "vital thesaurus" 2 November 2015. Web. 27 September 2026. <https://smartdefine.org/vital/thesaurus/synonyms> |