40 entries under adjective topic. ×

7
important(feature, characteristic, importance, necessity)
6
basic(feature, characteristic, basis)
6
essential(feature, characteristic, importance, basis)
6
necessary(feature, characteristic, basis, necessity)
6
needed(feature, characteristic, necessity)
6
needful(feature, characteristic, necessity)
5
first(feature, characteristic, basis)
5
unavoidable(feature, characteristic, necessity)
5
underlying(feature, characteristic, basis)
4
critical(feature, characteristic, importance)
4
elementary(feature, characteristic, basis)
4
influential(feature, characteristic, importance)
4
mandatory(feature, characteristic, necessity)
4
prominent(feature, characteristic, importance)
4
vital(feature, characteristic, importance, basis)
3
compulsory(feature, characteristic, necessity)
3
imperative(feature, characteristic, necessity)
3
leading(feature, characteristic, importance)
3
major(feature, characteristic, importance)
3
principal(feature, characteristic, basis)
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APASmart Define. (1970). basic necessity thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/basic_necessity/thesaurus/related
ChicagoSmart Define. 1970. "basic necessity thesaurus" https://smartdefine.org/basic_necessity/thesaurus/related (accessed September 21, 2026).
HarvardSmart Define 1970, basic necessity thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/basic_necessity/thesaurus/related>.
MLASmart Define. "basic necessity thesaurus" 1 January 1970. Web. 21 September 2026. <https://smartdefine.org/basic_necessity/thesaurus/related>