110 entries under basic topic. ×

1
uncompleted(simple, fundamental, elementary)
1
uncomplex(simple, straightforward, uncomplicated)
1
underived(important, original, vital, primary)
1
vestigial(simple, fundamental, elementary)
1
vital(adjective, body, material, important, significant)
0
absolute(adjective, fundamental, key, central)
0
bottom line(expression, important, significant, essential)
0
cold(adjective, absolute, fundamental, key)
0
complete(adjective, absolute, fundamental, key)
0
concealed(adjective, original, fundamental, primary)
0
congenital(adjective, absolute, fundamental, key)
0
connate(adjective, absolute, fundamental, key)
0
critical(adjective, original, essential, fundamental)
0
deep(original, primary)
0
early(simple, fundamental, elementary)
0
hidden(adjective, original, fundamental, primary)
0
ideal(adjective, absolute, fundamental, key)
0
immature(simple, fundamental, elementary)
0
inborn(adjective, absolute, fundamental, key)
0
inbred(adjective, absolute, fundamental, key)
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APASmart Define. (2015). basal thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/basal/thesaurus/synonyms
ChicagoSmart Define. 2015. "basal thesaurus" https://smartdefine.org/basal/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2015, basal thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/basal/thesaurus/synonyms>.
MLASmart Define. "basal thesaurus" 10 April 2015. Web. 21 September 2026. <https://smartdefine.org/basal/thesaurus/synonyms>