4
nonsensical
4
pubescent(adjective, new, inexperienced, young, immature)
4
unfledged(adjective, new, inexperienced, infant, young)
3
child-like(adjective, young, imbecility folly)
3
crazy
3
daft
3
imbecilic
3
junior(adjective, young)
3
ludicrous
3
moronic
3
teenage(adjective, young)
2
unripe(adjective, weak, tender, new, little)
2
arrested
2
babish
2
beardless(adjective, tender, green, young, adolescent)
2
blooming(adjective, young)
2
coltish(adjective, lively, playful)
2
farcical
2
foolhardy(adjective, simple, careless, foolish, stupid)
2
ill-advised(foolish, rash, risky)
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APASmart Define. (2015). childish thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/childish/thesaurus/synonyms
ChicagoSmart Define. 2015. "childish thesaurus" https://smartdefine.org/childish/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, childish thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/childish/thesaurus/synonyms>.
MLASmart Define. "childish thesaurus" 14 April 2015. Web. 25 September 2026. <https://smartdefine.org/childish/thesaurus/synonyms>