200 entries under adjective topic. ×
| inescapable(cruel, pitiless, unrelenting, inexorable) | |
| key(important, significant, original, essential) | |
| binding(sound, essential, inexorable, required) | |
| cardinal(noun, important, significant, original) | |
| certain(regular, definite, obvious, expected) | |
| compelling(reasonable, sensible, important, serious) | |
| exigent(important, substantial, serious, valuable) | |
| ineluctable(cruel, pitiless, unrelenting, inexorable) | |
| involuntary(required, inevitable) | |
| main(important, significant, original, capital) | |
| must(noun, right, want, need) | |
| pressing(important, substantial, serious, essential) | |
| principal(body, material, big, important) | |
| significant(big, important, original, substantial) | |
| undeniable(certain, definite, expected, unquestionable) | |
| wanted(important, capital, essential, vital) | |
| chief(big, important, significant, substantial) | |
| critical(big, important, significant, substantial) | |
| inexorable(certain, cruel, obvious, pitiless) | |
| prime(body, material, important, significant) |
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| APA | Smart Define. (2015). necessary thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/necessary/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "necessary thesaurus" https://smartdefine.org/necessary/thesaurus/synonyms (accessed September 24, 2026). |
| Harvard | Smart Define 2015, necessary thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/necessary/thesaurus/synonyms>. |
| MLA | Smart Define. "necessary thesaurus" 2 November 2015. Web. 24 September 2026. <https://smartdefine.org/necessary/thesaurus/synonyms> |