88 entries under vital topic. ×
| primitive(adjective, body, cause, start, simple) | |
| underlying(adjective, simple, plain, base, important) | |
| basal(adjective, body, simple, lead, plain) | |
| rudimentary(adjective, simple, plain, important, head) | |
| radical(adjective, cause, base, importance, important) | |
| primordial(adjective, cause, start, violent, important) | |
| constitutional(adjective, body, material, important, significant) | |
| crucial(adjective, big, important, significant, original) | |
| foundational(adjective, simple, plain, base, pure) | |
| great(adjective, important, significant, imperative) | |
| momentous(adjective, superior, big, unusual, important) | |
| significant(adjective, superior, big, unusual, important) | |
| constitutive(important, original, serious, basic, prime) | |
| indispensable(adjective, important, significant, original, serious) | |
| material(adjective, body, big, important, significant) | |
| necessary(adjective, body, material, big, important) | |
| underived(adjective, rough, important, significant, original) | |
| big(important, significant, substantial, large, serious) | |
| bottom(adjective, important, significant, original, essential) | |
| critical(adjective, big, important, significant, substantial) |
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| APA | Smart Define. (2016). primary thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/primary/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "primary thesaurus" https://smartdefine.org/primary/thesaurus/synonyms (accessed September 26, 2026). |
| Harvard | Smart Define 2016, primary thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/primary/thesaurus/synonyms>. |
| MLA | Smart Define. "primary thesaurus" 29 March 2016. Web. 26 September 2026. <https://smartdefine.org/primary/thesaurus/synonyms> |