2
inexperienced(adjective, young, childish, undeveloped, unformed)
2
kittenish
2
minor
2
naive
2
natal
2
silly
2
small(adjective, young, undeveloped, unformed)
2
undeveloped(inexperienced, young, childish, unformed)
2
unfledged(inexperienced, infant, young, childish, smallish)
2
unripe(inexperienced, young, childish, undeveloped, unformed)
2
unserious
1
abecedarian
1
alpha(adjective, beginning)
1
anile
1
antenatal
1
autochthonous
1
characterless
1
commencing(adjective, beginning)
1
creation
1
dawned(adjective, beginning)
11 years ago|6.5k views|share |citing 
APASmart Define. (2015). infantile thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/infantile/thesaurus/synonyms
ChicagoSmart Define. 2015. "infantile thesaurus" https://smartdefine.org/infantile/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2015, infantile thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/infantile/thesaurus/synonyms>.
MLASmart Define. "infantile thesaurus" 10 April 2015. Web. 26 September 2026. <https://smartdefine.org/infantile/thesaurus/synonyms>