133 entries under adjective topic. ×

1
deep-seated(original, essential, basic, absolute)
1
genuine
1
grass-roots(important, significant, original, essential)
1
hereditary
1
inbred(essential, basic, absolute, fundamental)
1
inbuilt
1
indwelling
1
interlinear(hidden, between, situated, inserted)
1
leading(top, essential, prime, vital)
1
lowermost(base, last, bottom)
1
major(important, significant, original, essential)
1
meat-and-potatoes(base, important, significant, last)
1
meat and potatoes(expression, idiom, simple, plain)
1
native
1
nethermost(base, last, bottom)
1
nitty-gritty(original, basic, absolute, fundamental)
1
nub(original, basic, absolute, fundamental)
1
paramount(important, significant, original, essential)
1
predominant(essential, main, central)
1
primordial(rough, important, significant, original)
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APASmart Define. (2015). underlying thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/underlying/thesaurus/synonyms
ChicagoSmart Define. 2015. "underlying thesaurus" https://smartdefine.org/underlying/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, underlying thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/underlying/thesaurus/synonyms>.
MLASmart Define. "underlying thesaurus" 10 April 2015. Web. 22 September 2026. <https://smartdefine.org/underlying/thesaurus/synonyms>