68 entries under stupid topic. ×

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dopey(dull, foolish, unintelligent, dumb)
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flighty(slight, careless, trivial, obtuse)
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incomprehensible(careless, obtuse, unperceptive, unobservant)
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lamebrained(careless, obtuse, unperceptive, unobservant)
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mentally deficient(expression, silly, foolish)
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mentally handicapped(expression, silly, foolish)
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not intelligent(expression, silly, foolish)
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wacky(careless, foolish, unreasonable, illogical)
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APASmart Define. (2015). unthinking thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/unthinking/thesaurus/synonyms
ChicagoSmart Define. 2015. "unthinking thesaurus" https://smartdefine.org/unthinking/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2015, unthinking thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/unthinking/thesaurus/synonyms>.
MLASmart Define. "unthinking thesaurus" 13 April 2015. Web. 28 September 2026. <https://smartdefine.org/unthinking/thesaurus/synonyms>