90 entries under foolish topic. ×

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beyond all reason(expression, idiom, silly, unwise)
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derailed(silly, stupid)
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derisory(silly, unwise)
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fantastic(silly, unwise)
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fatuous(silly, stupid, unwise)
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foolhardy(silly, unwise)
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giddy(simple, silly, uneven, unsound)
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harebrained(silly, unwise)
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ill-conceived(silly, unwise)
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impracticable(silly, unwise)
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impractical(silly, stupid)
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imprudent(silly, unwise)
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inane(simple, silly, unsound, unwise)
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inappropriate(silly, unwise)
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irresponsible(silly, stupid, unwise)
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ludicrous(silly, unwise)
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nonsensical(silly, unwise)
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out of all reason(expression, idiom, silly, unwise)
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outlandish(unusual, strange, silly, unwise)
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outrageous(silly, unwise)
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APASmart Define. (2015). unhinged thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/unhinged/thesaurus/synonyms
ChicagoSmart Define. 2015. "unhinged thesaurus" https://smartdefine.org/unhinged/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, unhinged thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/unhinged/thesaurus/synonyms>.
MLASmart Define. "unhinged thesaurus" 10 April 2015. Web. 25 September 2026. <https://smartdefine.org/unhinged/thesaurus/synonyms>