40 entries under adjective topic. ×

8
fundamental(noun, part, decrease, important)
4
organic(unimportant, inorganic)
3
essential(noun, decrease, common, usual)
3
necessary(common, usual, unimportant, trivial)
2
main(common, inferior, usual, principal)
2
needed(common, usual)
2
normal(common, usual)
1
basic(noun, decrease, common, insignificant)
1
integral(common, usual)
1
key details(insignificant, unimportant, minor, subordinate)
1
staple(basic, necessary)
1
usual
1
vital
0
elementary(common, usual, advanced)
0
capital(inferior, insignificant, essential, main)
0
key(insignificant, unimportant)
0
alkaline
0
bare
0
basal
0
built-in
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APASmart Define. (2016). extra thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/extra/thesaurus/antonyms
ChicagoSmart Define. 2016. "extra thesaurus" https://smartdefine.org/extra/thesaurus/antonyms (accessed September 23, 2026).
HarvardSmart Define 2016, extra thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/extra/thesaurus/antonyms>.
MLASmart Define. "extra thesaurus" 30 March 2016. Web. 23 September 2026. <https://smartdefine.org/extra/thesaurus/antonyms>