1
autochthonous
1
axiological(adjective, important, significant, original, essential)
1
axiomatic(adjective, important, significant, original, basic)
1
bare(adjective, pure)
1
basement(adjective, base, last)
1
blameless(adjective, pure)
1
budding
1
cardinal(adjective, important, significant, original, basic)
1
central(adjective, important, significant, original, basic)
1
chaste(adjective, pure)
1
clean(adjective, pure)
1
constitutional(adjective, important, significant, original, basic)
1
constitutive(adjective, important, significant, original, basic)
1
creation
1
crucial(adjective, important, significant, original, basic)
1
decent(adjective, pure)
1
duck soup(expression, adjective, simple, straightforward, basic)
1
easy(adjective, simple, straightforward, basic, fundamental)
1
embryonic
1
facile(adjective, simple, straightforward, basic, fundamental)
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APASmart Define. (2015). foundational thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/foundational/thesaurus/synonyms
ChicagoSmart Define. 2015. "foundational thesaurus" https://smartdefine.org/foundational/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2015, foundational thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/foundational/thesaurus/synonyms>.
MLASmart Define. "foundational thesaurus" 10 April 2015. Web. 21 September 2026. <https://smartdefine.org/foundational/thesaurus/synonyms>