47 entries under critical topic. ×
| decisive(adjective, important, substantial, valuable, essential) | |
| momentous(adjective, important, substantial, valuable, essential) | |
| central(adjective, important, significant, original, essential) | |
| integral(adjective, body, material, important, significant) | |
| primary(adjective, body, material, big, important) | |
| bottom-line(adjective, important, significant, original, essential) | |
| called-for(adjective, important, serious, essential) | |
| serious(adjective, big, important, significant, substantial) | |
| big(adjective, great, significant, substantial, large) | |
| capital(adjective, important, serious, essential) | |
| life-or-death(adjective, important, essential, basic) | |
| relevant(adjective, clear, sound, reasonable, sensible) | |
| coal-and-ice(important, essential, basic, fundamental) | |
| constitutive(important, original, capital, essential) | |
| grave(adjective, great, big, important, significant) | |
| heavy(big, important, significant, substantial, valuable) | |
| leading(adjective, important, serious, capital, essential) | |
| meaningful(adjective, big, important, significant, substantial) | |
| meat-and-potatoes(adjective, important, significant, original, essential) | |
| name(important, essential, basic, fundamental) |
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| APA | Smart Define. (2015). necessary thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/necessary/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "necessary thesaurus" https://smartdefine.org/necessary/thesaurus/synonyms (accessed September 27, 2026). |
| Harvard | Smart Define 2015, necessary thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/necessary/thesaurus/synonyms>. |
| MLA | Smart Define. "necessary thesaurus" 2 November 2015. Web. 27 September 2026. <https://smartdefine.org/necessary/thesaurus/synonyms> |