159 entries under adjective topic. ×

4
necessary(body, material, important, significant)
4
original(simple, important, natural, straightforward)
3
aboriginal
3
basilar
3
indispensable(important, significant, original, essential)
3
key(lead, important, head, significant)
3
lowermost(base, last, bottom)
3
lowest(easy, base, last, basic)
3
main(lead, head, master, essential)
3
major(lead, head, master, boss)
3
minimal(slightest, littlest)
3
nethermost(base, last, bottom)
3
primitive(body, simple, plain, material)
3
primordial(important, original, basic, vital)
3
principal(lead, head, master, boss)
3
substantial
3
undermost(base, last, bottom)
3
white
2
capital(lead, head, master, boss)
2
chief(lead, head, master, boss)
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APASmart Define. (2015). basal thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/basal/thesaurus/synonyms
ChicagoSmart Define. 2015. "basal thesaurus" https://smartdefine.org/basal/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, basal thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/basal/thesaurus/synonyms>.
MLASmart Define. "basal thesaurus" 10 April 2015. Web. 23 September 2026. <https://smartdefine.org/basal/thesaurus/synonyms>