55 entries under adjective topic. ×

7
essential(noun, important, basic, vital)
5
necessary(unimportant, trivial, essential)
4
important(dull, weak, substantial, valuable)
4
needed
4
requisite(noun, need)
3
indispensable
3
obligatory(essential, required, optional)
2
basic(insignificant, fundamental, intricate, elementary)
2
imperative
2
key(important, insignificant, unimportant, essential)
2
main(common, inferior, utter, absolute)
2
vital
1
capital(inferior, insignificant, essential, main)
1
critical
1
crucial
1
major(dull, essential)
1
meaningful(little, meaningless)
1
top tier
1
urgent
0
actual
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APASmart Define. (2015). nonessential thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/nonessential/thesaurus/antonyms
ChicagoSmart Define. 2015. "nonessential thesaurus" https://smartdefine.org/nonessential/thesaurus/antonyms (accessed September 24, 2026).
HarvardSmart Define 2015, nonessential thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/nonessential/thesaurus/antonyms>.
MLASmart Define. "nonessential thesaurus" 10 April 2015. Web. 24 September 2026. <https://smartdefine.org/nonessential/thesaurus/antonyms>