A juvenile is a child or young person who is not yet old enough to be regarded as an adult.
The number of juveniles in the general population has fallen by a fifth in the past 10 years.
Juvenile activity or behaviour involves young people who are not yet adults.
Juvenile crime is increasing at a terrifying rate.
...a scheme to lock up persistent juvenile offenders.
If you describe someone's behaviour as juvenile, you are critical of it because you think that it is silly or childish.
He's a typical male, as he gets older he becomes more juvenile.
Young animals are sometimes referred to as juveniles .
There is relatively little information about juveniles, maybe you can watch a bilingual story to relax your mood, I wish you a happy day!