| high(adjective, important, prominent, exalted) | |
| influential(adjective, great, big, important, significant) | |
| intrinsic(adjective, important, significant, original, essential) | |
| john | |
| lack(noun, requirement) | |
| loo | |
| peremptory | |
| primitive(adjective, body, material, important, significant) | |
| rest room(expression, idiom, receptacle) | |
| serious(adjective, big, important, significant, substantial) | |
| toilet | |
| ask for(verb, expression, phrasal verb, requirement) | |
| big(adjective, great, significant, substantial, large) | |
| bottom(adjective, important, significant, original, essential) | |
| can | |
| capital(adjective, important, serious, essential, critical) | |
| choiceless | |
| clear(sound, reasonable, sensible, certain, rational) | |
| considerable(big, significant, substantial, valuable, vital) | |
| core(original, fundamental, key, main, chief) |
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| APA | Smart Define. (2015). necessary thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/necessary/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "necessary thesaurus" https://smartdefine.org/necessary/thesaurus/synonyms (accessed September 23, 2026). |
| Harvard | Smart Define 2015, necessary thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/necessary/thesaurus/synonyms>. |
| MLA | Smart Define. "necessary thesaurus" 2 November 2015. Web. 23 September 2026. <https://smartdefine.org/necessary/thesaurus/synonyms> |