32 entries under simple topic. ×

14
rudimentary(adjective, fresh, crude, basic)
5
embryonic(adjective, basic, fundamental, hidden)
5
primitive(adjective, crude, basic, fundamental)
5
undeveloped(adjective, rough, crude, basic)
2
fundamental(adjective, basic, unsophisticated, elementary)
2
immature(basic, fundamental, hidden, concealed)
2
underdeveloped(adjective, crude, naive, hidden)
1
abecedarian(basic, fundamental, elementary)
1
atavistic(adjective, rough, crude, basic)
1
austere(adjective, rough, crude, basic)
1
basal(basic, fundamental, elementary)
1
basic(adjective, fundamental, unsophisticated, elementary)
1
beginning(basic, fundamental, elementary)
1
brutish(adjective, rough, crude, basic)
1
childlike(adjective, rough, crude, basic)
1
early(basic, fundamental, unsophisticated, elementary)
1
elemental(adjective, basic, fundamental, elementary)
1
elementary(adjective, basic, fundamental, unsophisticated)
1
initial(basic, fundamental, elementary)
1
introductory(basic, fundamental, elementary)
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APASmart Define. (2015). vestigial thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/vestigial/thesaurus/synonyms
ChicagoSmart Define. 2015. "vestigial thesaurus" https://smartdefine.org/vestigial/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2015, vestigial thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/vestigial/thesaurus/synonyms>.
MLASmart Define. "vestigial thesaurus" 10 April 2015. Web. 26 September 2026. <https://smartdefine.org/vestigial/thesaurus/synonyms>