20 entries under fundamental topic. ×

14
rudimentary(adjective, simple, fresh, crude, basic)
5
embryonic(adjective, simple, basic, hidden)
5
primitive(adjective, simple, crude, basic)
5
undeveloped(adjective, simple, rough, crude, basic)
2
immature(simple, basic, hidden, concealed)
1
abecedarian(simple, basic, elementary)
1
basal(simple, basic, elementary)
1
basic(adjective, simple, unsophisticated, elementary)
1
beginning(simple, basic, elementary)
1
early(simple, basic, unsophisticated, elementary)
1
elemental(adjective, simple, basic, elementary)
1
elementary(adjective, simple, basic, unsophisticated)
1
initial(simple, basic, elementary)
1
introductory(simple, basic, elementary)
1
larval(simple, basic, elementary)
1
primary(adjective, simple, basic, unsophisticated)
1
simple(crude, basic, unsophisticated, elementary)
1
simplest(simple, basic, elementary)
1
uncompleted(simple, basic, elementary)
0
nuts and bolts(expression, idiom, basic)
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APASmart Define. (2015). vestigial thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/vestigial/thesaurus/synonyms
ChicagoSmart Define. 2015. "vestigial thesaurus" https://smartdefine.org/vestigial/thesaurus/synonyms (accessed September 30, 2026).
HarvardSmart Define 2015, vestigial thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/vestigial/thesaurus/synonyms>.
MLASmart Define. "vestigial thesaurus" 10 April 2015. Web. 30 September 2026. <https://smartdefine.org/vestigial/thesaurus/synonyms>