90 entries under original topic. ×

5
integral(adjective, characteristic, important, significant, natural)
5
key(adjective, important, head, significant, beginning)
4
central(adjective, top, important, significant)
4
constitutional(adjective, top, important, significant)
4
intrinsic(adjective, characteristic, important, significant, natural)
4
nascent(adjective, pure, beginning, opening)
3
bottom(adjective, important, significant, essential)
3
crucial(adjective, important, significant, essential)
3
embryonic(adjective, simple, beginning, opening)
3
inceptive(adjective, head, beginning, fresh)
3
inchoate(adjective, beginning, opening, first)
3
necessary(adjective, easy, important, significant)
3
primordial(adjective, important, head, significant, beginning)
3
vital(adjective, top, important, significant)
2
constitutive(important, significant, basic, vital)
2
critical(adjective, essential, basic, fundamental)
2
deep(adjective, basic, primary)
2
early(adjective, simple, head, beginning, opening)
2
germinal(beginning, opening, first, early)
2
important(adjective, significant, basic, vital)
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APASmart Define. (2015). elementary thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/elementary/thesaurus/synonyms
ChicagoSmart Define. 2015. "elementary thesaurus" https://smartdefine.org/elementary/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, elementary thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/elementary/thesaurus/synonyms>.
MLASmart Define. "elementary thesaurus" 10 April 2015. Web. 23 September 2026. <https://smartdefine.org/elementary/thesaurus/synonyms>