504 entries under adjective topic. ×

12
basal(body, start, simple, plain)
12
chief(important, significant, essential, prime)
12
natural(characteristic, body, simple, rough)
12
plain(clear, light, smooth, simple)
11
introductory(start, simple, plain, head)
11
primitive(body, simple, plain, material)
11
radical(base, important, significant, last)
10
bare(hard, simple, severe, plain)
10
central(important, significant, original, essential)
10
indispensable(characteristic, important, significant, natural)
10
initial(start, simple, plain, head)
10
staple(noun, set, usual, regular)
10
unadorned(hard, simple, severe, plain)
9
ultimate(essential, surface, fundamental, supreme)
9
critical(severe, important, original, essential)
9
crucial(important, significant, original, essential)
9
deep-seated(characteristic, natural, original, essential)
9
innate(characteristic, material, natural, gut)
9
requisite(noun, important, want, significant)
9
stark(direct, simple, severe, plain)
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APASmart Define. (2015). basic thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/basic/thesaurus/synonyms
ChicagoSmart Define. 2015. "basic thesaurus" https://smartdefine.org/basic/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, basic thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/basic/thesaurus/synonyms>.
MLASmart Define. "basic thesaurus" 10 April 2015. Web. 23 September 2026. <https://smartdefine.org/basic/thesaurus/synonyms>