88 entries under foolish topic. ×

1
stupid(adjective, dull, cold, silly)
0
absurd(silly, unwise)
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beyond all reason(expression, adjective, idiom, wild, silly)
0
bizarre(silly, unwise)
0
cockeyed(silly, unwise)
0
derisory(adjective, wild, silly, senseless)
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fantastic(silly, unwise)
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fatuous(silly, unwise)
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harebrained(silly, unwise)
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ill-conceived(adjective, wild, silly, senseless)
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impracticable(silly, unwise)
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inappropriate(silly, unwise)
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irresponsible(silly, unwise)
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odd(silly, unwise)
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out of all reason(expression, adjective, idiom, wild, silly)
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outlandish(silly, unwise)
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outrageous(silly, unwise)
0
peculiar(silly, unwise)
0
preposterous(silly, unwise)
0
quixotic(silly, unwise)
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APASmart Define. (2013). out to lunch thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/out_to_lunch/thesaurus/synonyms
ChicagoSmart Define. 2013. "out to lunch thesaurus" https://smartdefine.org/out_to_lunch/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2013, out to lunch thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/out_to_lunch/thesaurus/synonyms>.
MLASmart Define. "out to lunch thesaurus" 17 May 2013. Web. 29 September 2026. <https://smartdefine.org/out_to_lunch/thesaurus/synonyms>