100 entries under foolish topic. ×

1
out of all reason(expression, idiom, silly, fantastic)
1
out to lunch(expression, idiom, dull, silly)
1
outrageous(silly, fantastic, unwise, impractical)
1
peculiar(silly, fantastic, unwise, impractical)
1
pointless(adjective, dull, silly, stupid)
1
quixotic(silly, fantastic, unwise, impractical)
1
short-sighted(silly, fantastic, unwise, impractical)
1
strange(silly, fantastic, unwise, impractical)
1
unworkable(silly, fantastic, unwise, impractical)
1
weird(silly, fantastic, unwise, impractical)
0
ape(silly, unwise)
0
bats in the belfry(expression, idiom, silly, unwise)
0
batty(silly, unwise, impractical, half-baked)
0
berserk(silly, unwise)
0
beyond reason(expression, fantastic, unrealistic)
0
bonkers(silly, unwise)
0
cracked(silly, unwise)
0
crazed(silly, unwise)
0
cuckoo(silly, unwise)
0
daft(silly, absurd, unwise, unintelligent)
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APASmart Define. (2015). puerile thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/puerile/thesaurus/synonyms
ChicagoSmart Define. 2015. "puerile thesaurus" https://smartdefine.org/puerile/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2015, puerile thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/puerile/thesaurus/synonyms>.
MLASmart Define. "puerile thesaurus" 14 April 2015. Web. 28 September 2026. <https://smartdefine.org/puerile/thesaurus/synonyms>