1
insane
1
insensate(adjective, simple, slow, silly, stupid)
1
instinctive(simple, plain, fresh, innocent, sincere)
1
irrational
1
lamb(simple, plain, fresh, innocent, sincere)
1
light-headed
1
like a babe in the woods(expression, simple, plain, fresh, innocent)
1
loutish
1
ludicrous(foolish, stupid)
1
muddle-headed
1
naif
1
natural(simple, plain, straightforward, innocent, sincere)
1
nonsensical
1
numskulled(adjective, simple, slow, stupid, boring)
1
nutty
1
original(simple, plain, fresh, innocent, sincere)
1
patsy(simple, plain, fresh, innocent, sincere)
1
round-eyed
1
senseless(adjective, silly, foolish, stupid, green)
1
simpleminded
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APASmart Define. (2013). simple-minded thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/simple-minded/thesaurus/synonyms
ChicagoSmart Define. 2013. "simple-minded thesaurus" https://smartdefine.org/simple-minded/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2013, simple-minded thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/simple-minded/thesaurus/synonyms>.
MLASmart Define. "simple-minded thesaurus" 17 October 2013. Web. 23 September 2026. <https://smartdefine.org/simple-minded/thesaurus/synonyms>