[adjective], [noun] [C] - (typical of) a young person between childhood and adulthoodadolescent concerns/traumas/problemsThe party was full of spotty adolescents.If adolescent is used of an adult or an adult's behaviour, it means silly and childish.adolescent humour/behaviourHe's so adolescent sometimes!
ADOLESCENT
Meaning of ADOLESCENT in English
Cambridge English vocab. Кембриджский английский словарь. 2012