51 entries under original topic. ×

2
substratal(adjective, simple, plain, important, significant)
1
axiological(important, basic, vital, primary)
1
axiomatic(important, basic, vital, primary)
1
bottom-line(adjective, important, significant, essential)
1
deep-seated(adjective, essential, basic, absolute)
1
first(important, serious, basic, prime)
1
grass-roots(important, basic, vital, primary)
1
integral(material, important, natural, basic)
1
intrinsic(adjective, important, significant, essential)
1
meat-and-potatoes(base, important, last, basic)
1
nitty-gritty(adjective, basic, absolute, fundamental)
1
nub(adjective, basic, absolute, fundamental)
1
paramount(important, serious, basic, prime)
1
requisite(important, essential, basic, vital)
1
root(noun, adjective, basic, fundamental)
1
significant(important, basic, vital, primary)
1
structural(material, important, natural, basic)
1
substrative(important, basic, vital, primary)
1
supporting(important, basic, vital, primary)
1
sustaining(important, basic, vital, primary)
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APASmart Define. (2015). basal thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/basal/thesaurus/synonyms
ChicagoSmart Define. 2015. "basal thesaurus" https://smartdefine.org/basal/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, basal thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/basal/thesaurus/synonyms>.
MLASmart Define. "basal thesaurus" 10 April 2015. Web. 25 September 2026. <https://smartdefine.org/basal/thesaurus/synonyms>