6
fundamental(adjective, characteristic, foundation, basis)
6
mother(noun, source, foundation, basis, origin)
5
basal(adjective, characteristic, foundation, basis)
5
capital(adjective, characteristic, foundation, basis)
5
central(adjective, characteristic, foundation, basis)
5
chief(adjective, characteristic, foundation, basis)
5
critical(adjective, characteristic, foundation, basis)
5
elemental(adjective, characteristic, foundation, basis)
5
elementary(adjective, characteristic, foundation, basis)
5
essential(adjective, characteristic, foundation, basis)
5
indispensable(adjective, characteristic, foundation, basis)
5
inherent(adjective, characteristic, foundation, basis)
5
intrinsic(adjective, characteristic, foundation, basis)
5
key(adjective, characteristic, foundation, basis)
5
main(adjective, characteristic, foundation, basis)
5
necessary(adjective, characteristic, foundation, basis)
5
origin(noun, source, foundation, basis)
5
primary(adjective, characteristic, foundation, basis)
5
primitive(adjective, characteristic, foundation, basis)
5
principal(adjective, characteristic, foundation, basis)
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APASmart Define. (2016). based on thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/based_on/thesaurus/related
ChicagoSmart Define. 2016. "based on thesaurus" https://smartdefine.org/based_on/thesaurus/related (accessed September 21, 2026).
HarvardSmart Define 2016, based on thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/based_on/thesaurus/related>.
MLASmart Define. "based on thesaurus" 1 April 2016. Web. 21 September 2026. <https://smartdefine.org/based_on/thesaurus/related>