Synonyms|23Antonyms|0|Broader|0Narrower|0Related|3
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balmy(adjective, stupid, crazy, insane)
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absurd(adjective, stupid, crazy, insane)
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bugged out(expression, adjective, stupid, crazy, insane)
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cracked(adjective, stupid, crazy, insane)
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crazed(adjective, stupid, crazy, insane)
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crazy(adjective, stupid, insane)
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daft(adjective, stupid, crazy, insane)
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deranged(adjective, stupid, crazy, insane)
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dotty(adjective, stupid, crazy, insane)
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foolish(adjective, stupid, crazy, insane)
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harebrained(adjective, stupid, crazy, insane)
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idiotic(adjective, stupid, crazy, insane)
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insane(adjective, stupid, crazy)
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loony(adjective, stupid, crazy, insane)
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moronic(adjective, stupid, crazy, insane)
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nuts(adjective, stupid, crazy, insane)
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nutty(adjective, stupid, crazy, insane)
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odd(adjective, stupid, crazy, insane)
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potty(adjective, stupid, crazy, insane)
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preposterous(adjective, stupid, crazy, insane)
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15 years ago|109 views|share |citing 
APASmart Define. (2011). mentally incompetent thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/mentally_incompetent/thesaurus/synonyms
ChicagoSmart Define. 2011. "mentally incompetent thesaurus" https://smartdefine.org/mentally_incompetent/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2011, mentally incompetent thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/mentally_incompetent/thesaurus/synonyms>.
MLASmart Define. "mentally incompetent thesaurus" 19 May 2011. Web. 22 September 2026. <https://smartdefine.org/mentally_incompetent/thesaurus/synonyms>