37 entries under adjective topic. ×

6
organic(unimportant, inorganic)
6
required
5
necessary(unimportant, trivial, valuable, essential)
3
indispensable
2
essential
2
imperative
2
mandatory(necessary, required)
2
needed
1
basic(insignificant, intricate)
1
crucial
1
important(dull, weak, little)
1
inevitable
1
integral(basic, necessary)
1
inescapable
1
main(common, inferior, utter, absolute)
1
necessitous
1
prerequisite(secondary, necessary)
1
staple(basic, necessary)
1
subservient(useful, secondary, disobedient)
1
urgent
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APASmart Define. (2015). unnecessary thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/unnecessary/thesaurus/antonyms
ChicagoSmart Define. 2015. "unnecessary thesaurus" https://smartdefine.org/unnecessary/thesaurus/antonyms (accessed September 28, 2026).
HarvardSmart Define 2015, unnecessary thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/unnecessary/thesaurus/antonyms>.
MLASmart Define. "unnecessary thesaurus" 10 April 2015. Web. 28 September 2026. <https://smartdefine.org/unnecessary/thesaurus/antonyms>