26 entries under immature topic. ×

34
juvenile(noun, adjective, person, minor, inexperienced)
22
youthful(adjective, new, inexperienced, young)
18
teenage(adjective, tender, green, young)
18
young(adjective, innocent, inexperienced, young)
15
teen(noun, adjective, person, minor, kid)
13
puerile(adjective, innocent, inexperienced, young)
12
childish(adjective, silly, innocent, inexperienced, young)
12
jejune(noun, adjective, innocent, inexperienced, unsophisticated)
12
pubescent(noun, adjective, new, inexperienced, kid)
10
boyish(adjective, new, inexperienced, young)
6
green(adjective, innocent, inexperienced, young)
6
unripe(adjective, inexperienced, young, childish)
5
callow(adjective, tender, little, naive, inexperienced)
5
kid(noun, inexperienced, young, child)
5
unfledged(inexperienced, young, childish, undeveloped)
4
babyish(adjective, tender, little, inexperienced, young)
4
girlish(adjective, young, preadult)
4
inexperienced(adjective, young, childlike, childish)
4
infant(noun, inexperienced, kid, baby, young)
4
raw(adjective, inexperienced, young, childish)
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APASmart Define. (2015). adolescent thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/adolescent/thesaurus/synonyms
ChicagoSmart Define. 2015. "adolescent thesaurus" https://smartdefine.org/adolescent/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2015, adolescent thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/adolescent/thesaurus/synonyms>.
MLASmart Define. "adolescent thesaurus" 10 April 2015. Web. 29 September 2026. <https://smartdefine.org/adolescent/thesaurus/synonyms>