45 entries under original topic. ×

1
underived(adjective, important, significant, essential)
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underlying(adjective, important, significant, essential)
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vital(adjective, important, significant, essential)
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deep(basic, primary)
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deep-seated(basic, primary)
<123>
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APASmart Define. (2015). sustaining thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/sustaining/thesaurus/synonyms
ChicagoSmart Define. 2015. "sustaining thesaurus" https://smartdefine.org/sustaining/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, sustaining thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/sustaining/thesaurus/synonyms>.
MLASmart Define. "sustaining thesaurus" 13 April 2015. Web. 25 September 2026. <https://smartdefine.org/sustaining/thesaurus/synonyms>