53 entries under required topic. ×
| required(adjective, right, important, capital, essential) | |
| essential(noun, adjective, body, material, big) | |
| requisite(noun, adjective, important, want, need) | |
| indispensable(adjective, important, significant, original, essential) | |
| vital(adjective, body, material, big, important) | |
| obligatory(adjective, sound, right, essential, obligation) | |
| fundamental(noun, adjective, body, material, important) | |
| imperative(adjective, important, essential, critical, vital) | |
| compulsory(adjective, cruel, essential, pitiless, obligation) | |
| prerequisite(noun, adjective, important, want, need) | |
| crucial(adjective, big, important, significant, original) | |
| needful(adjective, set, important, original, capital) | |
| mandatory(adjective, right, essential, obvious, obligation) | |
| inevitable(adjective, certain, regular, obvious, expected) | |
| needed(adjective, essential, important, critical, verb) | |
| basic(noun, adjective, body, material, important) | |
| inescapable(adjective, cruel, pitiless, unrelenting, inexorable) | |
| binding(adjective, sound, essential, inexorable) | |
| cardinal(noun, adjective, important, significant, original) | |
| involuntary(adjective, inevitable) |
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| APA | Smart Define. (2015). necessary thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/necessary/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "necessary thesaurus" https://smartdefine.org/necessary/thesaurus/synonyms (accessed September 22, 2026). |
| Harvard | Smart Define 2015, necessary thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/necessary/thesaurus/synonyms>. |
| MLA | Smart Define. "necessary thesaurus" 2 November 2015. Web. 22 September 2026. <https://smartdefine.org/necessary/thesaurus/synonyms> |