124 entries under significant topic. ×
| axiological(adjective, important, original, essential) | |
| axiomatic(important, original, basic, primary) | |
| basal(adjective, body, material, important) | |
| bottom(adjective, important, original, essential) | |
| bottom-line(adjective, important, original, essential) | |
| conclusive(adjective, last, serious, critical) | |
| conspicuous | |
| desperate(severe, serious, critical, grave) | |
| determining(big, important, substantial, serious) | |
| dire(adjective, severe, heavy, important) | |
| earth-shaking(important, serious, critical, historic) | |
| earth-shattering(important, serious, critical, historic) | |
| elemental(adjective, body, material, important) | |
| esteemed | |
| extensive(big, substantial, valuable, imperative) | |
| far-reaching(big, important, substantial, valuable) | |
| foundational(adjective, important, original, essential) | |
| front-page(big, substantial, valuable, imperative) | |
| grass-roots(adjective, important, original, essential) | |
| hazardous(adjective, heavy, serious, acute) |
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| APA | Smart Define. (2015). vital thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/vital/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "vital thesaurus" https://smartdefine.org/vital/thesaurus/synonyms (accessed September 28, 2026). |
| Harvard | Smart Define 2015, vital thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/vital/thesaurus/synonyms>. |
| MLA | Smart Define. "vital thesaurus" 2 November 2015. Web. 28 September 2026. <https://smartdefine.org/vital/thesaurus/synonyms> |