68 entries under unintelligent topic. ×

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scatterbrained(adjective, simple, slow, stupid)
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shallow(adjective, simple, slow, stupid)
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shortsighted(dull, witless)
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simple-minded(adjective, simple, slow, stupid)
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simpleminded(dull, witless)
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trivial(adjective, dull, simple, slow, foolish)
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unintellectual(adjective, simple, slow, stupid)
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unthinking(dull, witless)
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APASmart Define. (2016). sluggish thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/sluggish/thesaurus/synonyms
ChicagoSmart Define. 2016. "sluggish thesaurus" https://smartdefine.org/sluggish/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2016, sluggish thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/sluggish/thesaurus/synonyms>.
MLASmart Define. "sluggish thesaurus" 1 April 2016. Web. 29 September 2026. <https://smartdefine.org/sluggish/thesaurus/synonyms>