96 entries under naive topic. ×

12
open(adjective, clear, easy, flat, honest)
11
ignorant(adjective, characteristic, dull, open, slight)
11
green(adjective, clean, honest, plain, informal)
11
unadulterated(adjective, complete, clean, total, plain)
10
simple-minded(adjective, dull, ability, honest, slow)
9
credulous(adjective, pure, silly, stupid, intelligent)
9
gullible(adjective, dull, silly, foolish, stupid)
7
folksy(adjective, open, easy, clean, honest)
7
genuine(adjective, open, right, easy, clean)
7
transparent(adjective, clear, easy, sharp, clean)
7
unartificial(adjective, clean, honest, plain, natural)
7
unstudied(adjective, open, clean, honest, plain)
6
homey(adjective, easy, honest, plain, informal)
6
inexperienced(adjective, pure, silly, stupid, coarse)
6
square(adjective, honest, plain, ordinary, straightforward)
6
trusting(adjective, open, easy, clean, honest)
6
unsuspicious(adjective, innocent, ignorant, inexperienced)
6
unworldly(adjective, open, easy, honest, natural)
6
wide-eyed(adjective, clean, foolish, natural, straightforward)
5
crude(adjective, plain, violent, natural, vicious)
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APASmart Define. (2016). simple thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/simple/thesaurus/synonyms
ChicagoSmart Define. 2016. "simple thesaurus" https://smartdefine.org/simple/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2016, simple thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/simple/thesaurus/synonyms>.
MLASmart Define. "simple thesaurus" 29 March 2016. Web. 23 September 2026. <https://smartdefine.org/simple/thesaurus/synonyms>