119 entries under silly topic. ×

3
trifling(adjective, slight, poor, trivial)
3
unwise(adjective, foolish, stupid, absurd)
2
foolhardy(adjective, foolish, stupid, fantastic)
2
harebrained(foolish, stupid, fantastic, trivial)
2
illogical(adjective, poor, stupid, absurd)
2
preposterous(adjective, foolish, stupid, fantastic)
2
simple(dull, slight, trivial, unintelligent)
1
balmy(foolish, stupid, fantastic, absurd)
1
barmy(foolish, trivial, unwise, playful)
1
beyond all reason(expression, idiom, foolish, fantastic)
1
birdbrained(impractical, unintelligent, unaware, half-baked)
1
bizarre(foolish, fantastic, unwise, impractical)
1
brainless(dull, stupid, absurd, unintelligent)
1
cockeyed(foolish, fantastic, unwise, impractical)
1
dense(dull, unintelligent, unaware, witless)
1
derisory(foolish, fantastic, unwise, impractical)
1
dull(careless, stupid, unthinking, unintelligent)
1
eccentric(foolish, fantastic, unwise, impractical)
1
empty-headed(slight, careless, foolish, stupid)
1
futile(dull, absurd, unintelligent, witless)
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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>