80 entries under foolish topic. ×

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boisterous(adjective, rough, crazy, unstable)
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cracked(silly, stupid)
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cuckoo(silly, stupid)
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disorderly(adjective, crazy, unstable, unsettled)
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foolhardy(adjective, crazy, insane, irrational)
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impracticable(adjective, rough, crazy, irrational)
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incautious(adjective, rough, crazy, irrational)
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licentious(adjective, rough, crazy, irrational)
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madcap(adjective, rough, crazy, irrational)
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profligate(adjective, rough, crazy, irrational)
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ridiculous(silly, stupid)
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rowdy(adjective, rough, crazy, unstable)
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self-willed(adjective, rough, crazy, irrational)
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silly
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stupid
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touched(silly, stupid)
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unfettered(adjective, rough, crazy, irrational)
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ungovernable(adjective, crazy, unstable, unsettled)
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unmanageable(adjective, crazy, unstable, unsettled)
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wayward(adjective, crazy, irrational, outrageous)
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APASmart Define. (2015). rabid thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/rabid/thesaurus/synonyms
ChicagoSmart Define. 2015. "rabid thesaurus" https://smartdefine.org/rabid/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, rabid thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/rabid/thesaurus/synonyms>.
MLASmart Define. "rabid thesaurus" 14 April 2015. Web. 24 September 2026. <https://smartdefine.org/rabid/thesaurus/synonyms>