208 entries under basic topic. ×

6
plain(adjective, simple, pure, straightforward)
6
pressing(adjective, big, important, significant, substantial)
6
primitive(adjective, body, simple, plain, material)
6
profound(adjective, intimate, fundamental, secret)
6
quintessential(adjective, characteristic, important, common, ordinary)
5
concealed(adjective, individual, original, fundamental)
5
connate(adjective, fundamental, intrinsicality)
5
individual(adjective, characteristic, natural, private)
5
inmost(adjective, important, significant, intimate)
5
original(adjective, characteristic, body, simple, plain)
5
precondition(noun, concern, condition, need)
5
stuff(noun, necessity, substantiality)
5
wanted(adjective, important, significant, serious, capital)
4
particular(noun, adjective, drop, material, element)
4
binding(adjective, significant, vital, necessary)
4
characteristic(noun, adjective, feature, quality, reasonable)
4
clear(adjective, simple, easy, plain, pure)
4
fixed(adjective, characteristic, natural, individual)
4
hidden(adjective, individual, original, fundamental)
4
nitty-gritty(noun, adjective, important, critical, essence)
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APASmart Define. (2016). essential thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/essential/thesaurus/synonyms
ChicagoSmart Define. 2016. "essential thesaurus" https://smartdefine.org/essential/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2016, essential thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/essential/thesaurus/synonyms>.
MLASmart Define. "essential thesaurus" 31 March 2016. Web. 22 September 2026. <https://smartdefine.org/essential/thesaurus/synonyms>