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

103 entries under silly topic. ×

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not sensible(expression, impractical, unlikely, unreal)
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nuts(adjective, rough, wild, foolish)
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nutty(foolish, unwise)
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nutty as fruitcake(expression, idiom, foolish, unwise)
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of unsound mind(expression, idiom, foolish, unwise)
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on cloud nine(expression, idiom, unlikely, unreal)
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out to lunch(expression, idiom, foolish, unwise)
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outlandish(foolish, unwise)
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potty(foolish, unwise)
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psycho(foolish, unwise)
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reachy(impractical, unlikely, unreal, idealistic)
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round the bend(expression, idiom, foolish, unwise)
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schizo(foolish, unwise)
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screw loose(expression, foolish, unwise)
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screwball(foolish, unwise)
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screwy(foolish, unwise)
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touched(foolish, unwise)
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unbalanced(foolish, unwise)
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unglued(foolish, unwise)
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unhinged(foolish, unwise)
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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>