87 entries under basic topic. ×

1
sustaining(adjective, important, significant, essential)
1
theoretical(adjective, obscure, extraordinary, superior, important)
1
uncomplex(simple, straightforward, fundamental, uncomplicated)
1
uncomplicated(simple, straightforward, fundamental)
1
vital(adjective, body, material, important, significant)
0
bottom line(expression, important, significant, essential)
0
deep(smart, bright, primary, brainy)
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APASmart Define. (2016). original thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/original/thesaurus/synonyms
ChicagoSmart Define. 2016. "original thesaurus" https://smartdefine.org/original/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2016, original thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/original/thesaurus/synonyms>.
MLASmart Define. "original thesaurus" 29 March 2016. Web. 22 September 2026. <https://smartdefine.org/original/thesaurus/synonyms>