65 entries under noun topic. ×

40
essential(adjective, body, material, big)
33
requisite(adjective, important, want, need)
23
fundamental(adjective, body, material, important)
20
prerequisite(adjective, important, want, need)
16
necessity(want, need, essential, basic)
13
basic(adjective, body, material, important)
11
cardinal(adjective, important, significant, original)
10
must(adjective, right, want, need)
10
need(verb, want, essential, certainty)
10
requirement(want, need, essential, certainty)
5
demand(want, need, essential, certainty)
5
desideratum(want, need, essential, certainty)
5
jakes
5
want(verb, need, essential, certainty)
4
backhouse
4
sine qua non(expression, idiom, need, essential)
3
duty(want, essential, obligation, requirement)
3
lack
2
money(form, means, cash, medium)
2
necessaries(inevitability, needfulness)
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APASmart Define. (2015). necessary thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/necessary/thesaurus/synonyms
ChicagoSmart Define. 2015. "necessary thesaurus" https://smartdefine.org/necessary/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2015, necessary thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/necessary/thesaurus/synonyms>.
MLASmart Define. "necessary thesaurus" 2 November 2015. Web. 26 September 2026. <https://smartdefine.org/necessary/thesaurus/synonyms>