69 entries under original topic. ×

3
crucial(adjective, important, significant, essential)
3
early(adjective, head, beginning, basic)
3
foundational(adjective, simple, plain, important, significant)
2
aboriginal(adjective, head, beginning, prime)
2
bottom(noun, adjective, important, significant)
2
constitutional(adjective, important, significant, essential)
2
important(adjective, significant, essential, basic)
2
inaugural(adjective, head, beginning, prime)
2
primeval(adjective, head, beginning, prime)
2
primogenial(adjective, head, beginning, fresh)
2
substratal(adjective, simple, plain, important, significant)
2
vital(adjective, important, significant, essential)
1
ahead(adjective, head, beginning, opening)
1
antecedent(adjective, head, beginning, opening)
1
anterior(adjective, head, beginning, fresh)
1
axiological(adjective, important, significant, essential)
1
axiomatic(important, significant, basic, vital)
1
bottom-line(important, significant, basic, vital)
1
constitutive(important, significant, basic, vital)
1
deep(adjective, basic, primary)
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APASmart Define. (2015). rudimentary thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/rudimentary/thesaurus/synonyms
ChicagoSmart Define. 2015. "rudimentary thesaurus" https://smartdefine.org/rudimentary/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2015, rudimentary thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/rudimentary/thesaurus/synonyms>.
MLASmart Define. "rudimentary thesaurus" 14 April 2015. Web. 28 September 2026. <https://smartdefine.org/rudimentary/thesaurus/synonyms>