7
young(adjective, slight, limited, raw, insufficient)
6
boy(noun, child, youth, juvenile, youngster)
6
bairn(noun, innocent, minor, bundle, kid)
6
foundling(noun, very small baby, suckling)
6
immature(adjective, slight, limited, raw, insufficient)
6
initial(adjective, beginning, opening, original, authentic)
6
original(adjective, beginning, opening, first, primary)
6
papoose(noun, bundle, kid, deduction, baby)
6
youth(noun, weakness, kid, baby, child)
6
youthful(adjective, new, inexperienced, luxuriant, young)
5
cherub(noun, innocent, minor, bundle, kid)
5
nurseling(noun, very small baby)
5
stripling(noun, youngster)
4
aboriginal(adjective, beginning, authentic, first, previous)
4
adolescent(noun, inexperienced, kid, baby, young)
4
beginning(adjective, beginning, opening, original, authentic)
4
budding(adjective, beginning, lush, luxuriant, young)
4
callow(adjective, inexperienced, luxuriant, young, immature)
4
embryonic(adjective, slight, beginning, original, limited)
4
inaugural(adjective, beginning, opening, original, first)
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APASmart Define. (2016). infant thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/infant/thesaurus/synonyms
ChicagoSmart Define. 2016. "infant thesaurus" https://smartdefine.org/infant/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2016, infant thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/infant/thesaurus/synonyms>.
MLASmart Define. "infant thesaurus" 30 March 2016. Web. 22 September 2026. <https://smartdefine.org/infant/thesaurus/synonyms>