68 entries under simple topic. ×

3
unified(adjective, whole, united)
3
united(adjective, whole, united)
2
ABCs(noun, adjective, part, plain)
2
embryonic(beginning, opening, original, basic)
2
substratal(adjective, clear, plain, important)
1
duck soup(expression, straightforward, basic, uncomplicated)
1
earliest(top, beginning, opening, original)
1
early(adjective, rough, head, beginning)
1
easy(straightforward, basic, uncomplicated)
1
facile(straightforward, basic, uncomplicated)
1
meat and potatoes(expression, idiom, condition, straightforward)
1
prefatory(opening, straightforward, basic, first)
1
preliminary(adjective, concern, need, straightforward)
1
primo(straightforward, original, basic, primary)
1
simplest(straightforward, basic, uncomplicated, elementary)
1
simplex(straightforward, basic, uncomplicated)
1
simplified(straightforward, basic, uncomplicated)
1
uncomplex(straightforward, basic, uncomplicated)
1
uncomplicated(straightforward, basic, unsophisticated)
1
vestigial(adjective, basic, unsophisticated, elementary)
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APASmart Define. (2016). fundamental thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/fundamental/thesaurus/synonyms
ChicagoSmart Define. 2016. "fundamental thesaurus" https://smartdefine.org/fundamental/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2016, fundamental thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/fundamental/thesaurus/synonyms>.
MLASmart Define. "fundamental thesaurus" 29 March 2016. Web. 25 September 2026. <https://smartdefine.org/fundamental/thesaurus/synonyms>