96 entries under important topic. ×
| elemental(adjective, body, material, significant) | |
| high(adjective, prominent, exalted) | |
| influential(adjective, great, big, significant) | |
| intrinsic(adjective, significant, original, essential) | |
| primitive(adjective, body, material, significant) | |
| serious(adjective, big, significant, substantial) | |
| bottom(adjective, significant, original, essential) | |
| capital(adjective, serious, essential, critical) | |
| importunate(big, significant, substantial, serious) | |
| life-or-death(adjective, essential, critical, basic) | |
| weighty(big, significant, substantial, valuable) | |
| axiological(adjective, significant, original, essential) | |
| axiomatic(significant, original, basic, vital) | |
| coal-and-ice(essential, critical, basic, fundamental) | |
| constitutional(adjective, body, material, significant) | |
| constitutive(original, capital, essential, critical) | |
| first(adjective, significant, original, essential) | |
| foremost(adjective, significant, capital, essential) | |
| foundational(adjective, significant, original, essential) | |
| grass-roots(adjective, significant, original, essential) |
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| APA | Smart Define. (2015). necessary thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/necessary/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "necessary thesaurus" https://smartdefine.org/necessary/thesaurus/synonyms (accessed September 23, 2026). |
| Harvard | Smart Define 2015, necessary thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/necessary/thesaurus/synonyms>. |
| MLA | Smart Define. "necessary thesaurus" 2 November 2015. Web. 23 September 2026. <https://smartdefine.org/necessary/thesaurus/synonyms> |