240 entries under noun topic. ×
| fundamental(adjective, support, action, characteristic) | |
| basic(adjective, characteristic, drop, part) | |
| necessary(adjective, body, material, big) | |
| requisite(adjective, right, condition, important) | |
| imperative(adjective, form, fix, pass) | |
| prerequisite(adjective, form, fix, pass) | |
| material(adjective, drop, body, physical) | |
| necessity(condition, want, need, heart) | |
| requirement(form, fix, pass, position) | |
| must(adjective, right, want, need) | |
| sine qua non(expression, idiom, condition, importance) | |
| element(form, drop, part, fix) | |
| condition(position, need, shape, situation) | |
| essence(nature, feature, support, action) | |
| constituent(adjective, drop, part, material) | |
| need(verb, concern, condition, demand) | |
| demand(right, concern, want, need) | |
| principle(adjective, support, action, drop) | |
| rudiment(support, action, drop, part) | |
| substance(adjective, importance, basic, necessity) |
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| APA | Smart Define. (2016). essential thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/essential/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "essential thesaurus" https://smartdefine.org/essential/thesaurus/synonyms (accessed September 24, 2026). |
| Harvard | Smart Define 2016, essential thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/essential/thesaurus/synonyms>. |
| MLA | Smart Define. "essential thesaurus" 31 March 2016. Web. 24 September 2026. <https://smartdefine.org/essential/thesaurus/synonyms> |