40 entries under characteristic topic. ×

3
required(adjective, feature, necessity)
3
serious(adjective, feature, importance)
3
significant(adjective, feature, importance)
3
urgent(adjective, feature, necessity)
3
weighty(adjective, feature, importance)
2
elemental(adjective, feature, basis)
2
consequential(adjective, feature, importance)
2
crucial(adjective, feature, importance, necessity)
2
fundamental(adjective, feature, basis, necessity)
2
indispensable(adjective, feature, necessity)
2
inevitable(adjective, feature, necessity)
2
main(adjective, feature, basis)
2
momentous(adjective, feature, importance)
2
notable(adjective, feature, importance)
2
noteworthy(adjective, feature, importance)
2
obligatory(adjective, feature, necessity)
2
prerequisite(adjective, feature, necessity)
2
primary(adjective, feature, basis)
2
prime(adjective, feature, basis)
2
requisite(adjective, feature, necessity)
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APASmart Define. (1970). basic necessity thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/basic_necessity/thesaurus/related
ChicagoSmart Define. 1970. "basic necessity thesaurus" https://smartdefine.org/basic_necessity/thesaurus/related (accessed September 23, 2026).
HarvardSmart Define 1970, basic necessity thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/basic_necessity/thesaurus/related>.
MLASmart Define. "basic necessity thesaurus" 1 January 1970. Web. 23 September 2026. <https://smartdefine.org/basic_necessity/thesaurus/related>