100 entries under foolish topic. ×

25
childish(adjective, silly, trivial, green)
25
silly(adjective, stupid, fantastic, trivial)
15
fatuous(adjective, silly, stupid, fantastic)
10
ridiculous(adjective, silly, stupid, fantastic)
9
goofy(adjective, silly, fantastic, unwise)
9
trivial(adjective, dull, slight, poor, silly)
8
irresponsible(adjective, silly, stupid, fantastic)
6
inane(adjective, dull, silly, stupid)
6
mad(adjective, silly, unwise, unintelligent)
5
crazy(adjective, silly, stupid, fantastic)
5
irrational(adjective, careless, silly, stupid)
4
stupid(adjective, dull, careless, silly)
3
absurd(adjective, silly, stupid, fantastic)
3
flighty(slight, careless, silly, stupid)
3
insane(adjective, silly, fantastic, unwise)
3
ludicrous(adjective, dull, silly, stupid)
3
nonsensical(adjective, dull, silly, stupid)
3
senseless(adjective, dull, silly, stupid)
3
unwise(adjective, silly, stupid, absurd)
2
foolhardy(adjective, silly, stupid, fantastic)
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APASmart Define. (2015). puerile thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/puerile/thesaurus/synonyms
ChicagoSmart Define. 2015. "puerile thesaurus" https://smartdefine.org/puerile/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2015, puerile thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/puerile/thesaurus/synonyms>.
MLASmart Define. "puerile thesaurus" 14 April 2015. Web. 26 September 2026. <https://smartdefine.org/puerile/thesaurus/synonyms>