52 entries under elementary topic. ×

2
central(adjective, top, important, significant, original)
2
constitutional(adjective, body, material, important, significant)
2
crucial(adjective, important, significant, original, essential)
2
foundational(adjective, simple, plain, important, significant)
2
intrinsic(adjective, important, significant, original, essential)
2
key(adjective, important, head, significant, beginning)
2
necessary(adjective, body, material, important, significant)
2
principal(adjective, body, material, important, significant)
2
substratal(adjective, simple, plain, important, significant)
2
vital(adjective, body, material, important, significant)
1
axiological(adjective, important, significant, original, essential)
1
bottom(adjective, important, significant, original, essential)
1
bottom-line(adjective, important, significant, original, essential)
1
deep-seated(adjective, original, essential, basic, absolute)
1
grass-roots(adjective, important, significant, original, essential)
1
indispensable(adjective, important, significant, original, essential)
1
inherent(adjective, body, material, natural, animate)
1
integral(adjective, body, material, important, significant)
1
main(adjective, top, original, essential, basic)
1
major(adjective, important, significant, original, essential)
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APASmart Define. (2015). primitive thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/primitive/thesaurus/synonyms
ChicagoSmart Define. 2015. "primitive thesaurus" https://smartdefine.org/primitive/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2015, primitive thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/primitive/thesaurus/synonyms>.
MLASmart Define. "primitive thesaurus" 14 April 2015. Web. 21 September 2026. <https://smartdefine.org/primitive/thesaurus/synonyms>