93 entries under basic topic. ×
| essential(noun, adjective, body, material, big) | |
| requisite(noun, adjective, important, want, need) | |
| indispensable(adjective, important, significant, original, essential) | |
| vital(adjective, body, material, big, important) | |
| fundamental(noun, adjective, body, material, important) | |
| important(adjective, significant, original, substantial, serious) | |
| prerequisite(noun, adjective, important, want, need) | |
| crucial(adjective, big, important, significant, original) | |
| needful(adjective, set, important, original, capital) | |
| organic(adjective, important, significant, natural, animate) | |
| necessity(noun, want, need, essential) | |
| key(adjective, important, significant, original, essential) | |
| cardinal(noun, adjective, important, significant, original) | |
| main(adjective, important, significant, original, capital) | |
| must(noun, adjective, right, want, need) | |
| need(noun, verb, want, essential, certainty) | |
| principal(adjective, body, material, big, important) | |
| requirement(noun, want, need, essential, certainty) | |
| significant(adjective, big, important, original, substantial) | |
| chief(adjective, big, important, significant, substantial) |
For more, visit
Necessary on
Power Thesaurus
| APA | Smart Define. (2015). necessary thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/necessary/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "necessary thesaurus" https://smartdefine.org/necessary/thesaurus/synonyms (accessed September 20, 2026). |
| Harvard | Smart Define 2015, necessary thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/necessary/thesaurus/synonyms>. |
| MLA | Smart Define. "necessary thesaurus" 2 November 2015. Web. 20 September 2026. <https://smartdefine.org/necessary/thesaurus/synonyms> |