Synonyms|524Antonyms|142|Broader|0Narrower|0Related|164

93 entries under foolish topic. ×

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irrational(silly, unwise)
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kooky(silly, unwise)
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lunatic(silly, unwise)
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mad(silly, unwise)
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mad as a March hare(expression, adjective, idiom, wild, silly)
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mad as a hatter(expression, adjective, idiom, wild, silly)
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maniacal(silly, unwise)
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mental(silly, unwise)
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mentally strange(expression, silly, unwise)
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moonstruck(silly, unwise)
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nuts(silly, unwise)
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nutty(adjective, silly, unwise, preposterous)
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nutty as fruitcake(expression, adjective, idiom, wild, silly)
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of unsound mind(expression, adjective, idiom, wild, silly)
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out to lunch(expression, adjective, idiom, wild, silly)
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outlandish(silly, unwise, preposterous, ludicrous)
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potty(adjective, wild, silly, senseless)
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psycho(silly, unwise)
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round the bend(expression, adjective, idiom, wild, silly)
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schizo(adjective, wild, silly, senseless)
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APASmart Define. (2015). derisory thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/derisory/thesaurus/synonyms
ChicagoSmart Define. 2015. "derisory thesaurus" https://smartdefine.org/derisory/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, derisory thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/derisory/thesaurus/synonyms>.
MLASmart Define. "derisory thesaurus" 10 April 2015. Web. 25 September 2026. <https://smartdefine.org/derisory/thesaurus/synonyms>