203 entries under basic topic. ×

1
preliminary(adjective, simple, concern, need, straightforward)
1
pressing(adjective, important, significant, essential, critical)
1
primo(simple, straightforward, original, primary)
1
simplest(simple, straightforward, uncomplicated, elementary)
1
simplex(simple, straightforward, uncomplicated)
1
simplified(simple, straightforward, uncomplicated)
1
specified(adjective, significant, essential, vital)
1
test(noun, adjective, law, regulation, order)
1
unavoidable(adjective, significant, essential, vital)
1
uncomplex(simple, straightforward, uncomplicated)
1
uncomplicated(simple, straightforward, unsophisticated)
1
underlined(important, essential, critical, key)
1
urgent(adjective, important, significant, essential, critical)
1
vestigial(adjective, simple, unsophisticated, elementary)
1
vital part(noun, expression, concern, demand, need)
1
wanted(adjective, important, significant, capital, essential)
0
animal(simple, living, unsophisticated, biological)
0
binding(adjective, significant, essential, vital)
0
combining
0
composing(essential, constituent)
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APASmart Define. (2016). fundamental thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/fundamental/thesaurus/synonyms
ChicagoSmart Define. 2016. "fundamental thesaurus" https://smartdefine.org/fundamental/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2016, fundamental thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/fundamental/thesaurus/synonyms>.
MLASmart Define. "fundamental thesaurus" 29 March 2016. Web. 23 September 2026. <https://smartdefine.org/fundamental/thesaurus/synonyms>