Synonyms|529Antonyms|92|Broader|7Narrower|0Related|487

130 entries under foolish topic. ×

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incautious(adjective, rough, crazy, irrational)
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kooky(silly, unwise)
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lawless(adjective, rough, crazy, irrational)
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licentious(adjective, rough, crazy, irrational)
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lunatic(silly, unwise)
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mad as a March hare(expression, idiom, silly, unwise)
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mad as a hatter(expression, idiom, silly, unwise)
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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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noisy(adjective, rough, crazy, irrational)
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nuts(adjective, rough, wild, silly)
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nutty(silly, unwise)
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nutty as fruitcake(expression, idiom, silly, unwise)
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of unsound mind(expression, idiom, silly, unwise)
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out to lunch(expression, idiom, silly, unwise)
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outlandish(silly, unwise)
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potty(silly, unwise)
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profligate(adjective, rough, crazy, irrational)
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APASmart Define. (2016). impracticable thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/impracticable/thesaurus/synonyms
ChicagoSmart Define. 2016. "impracticable thesaurus" https://smartdefine.org/impracticable/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2016, impracticable thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/impracticable/thesaurus/synonyms>.
MLASmart Define. "impracticable thesaurus" 29 March 2016. Web. 25 September 2026. <https://smartdefine.org/impracticable/thesaurus/synonyms>