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adjective(of birds) not yet having developed feathers
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adjective(used of living things especially persons) in an early period of life or development or growth
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adjectivenot fully developed or mature; not ripe
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adjectivecharacteristic of a lack of maturityOpposite:
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adjectivenot yet mature
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Synonyms & Similar Words
little new young small early green junior tender childish teenage juvenile teen premature newborn adolescent youthful infantile childlike boyish girlish underdeveloped jejune immaturity pupal embryonic teenaged puerile pubescent unripe larval prepubescent youngish vernal preteen unripened unaged prepupal unfledged preadolescent babyish unfeathered one-year-old puppyish puppylike schoolboyish schoolgirlish three-year-old five-year-old four-year-old two-year-old childly boylike immatureness embryologic embryonal inceptive inchoative prepubertal