4
unripe(adjective, weak, raw, green, inexperienced)
3
absurd(adjective, silly, foolish, stupid, fantastic)
3
blooming(adjective, lush, luxuriant, young, verdant)
3
careless(stupid, unthinking, obtuse, feebleness, unperceptive)
3
flighty(slight, careless, silly, foolish, stupid)
3
fresh(adjective, lush, luxuriant, young, childlike)
3
inconsequential
3
insane(adjective, silly, foolish, fantastic, unwise)
3
insignificant
3
insipid
3
insubstantial
3
junior(adjective, young)
3
kiddish
3
laughable(adjective, dull, silly, absurd, unintelligent)
3
ludicrous(adjective, dull, silly, foolish, stupid)
3
nonsensical(adjective, dull, silly, foolish, stupid)
3
petty(adjective, unimportance, childish)
3
senseless(adjective, dull, silly, foolish, stupid)
3
teenaged
3
thoughtless(adjective, careless, stupid, unthinking, unobservant)
11 years ago|11k views|share |citing 
APASmart Define. (2015). puerile thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/puerile/thesaurus/synonyms
ChicagoSmart Define. 2015. "puerile thesaurus" https://smartdefine.org/puerile/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2015, puerile thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/puerile/thesaurus/synonyms>.
MLASmart Define. "puerile thesaurus" 14 April 2015. Web. 27 September 2026. <https://smartdefine.org/puerile/thesaurus/synonyms>