adolescent
US
UK adolescent n: (teenager)
SC 青少年 qīng shào nián
Things are rarely quiet with three adolescents in the house.
adolescent adj: (relating to adolescence)
SC 青春期的 qīng chūn qī de
SC 青少年的 qīng chūn qī de ，qīng shào nián de
Parents often find adolescent behaviour challenging.
adolescent adj: pejorative (immature) (贬义词)
SC 不成熟的，毛头小子的 bù chéng shú de ，máo tóu xiǎo zi de
His response to the criticism seemed defensive and adolescent.