displaying or suggesting a lack of maturity; "adolescent insecurity"; "jejune responses to our problems"; "their behavior was juvenile"; "puerile jokes"
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 offenders receive special treatment and the overriding emphasis is on rehabilitation rather than punishment, with criminal proceedings being avoided wherever possible There is a juvenile court where crimes committed by children are tried
disapproval 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. = childish
I start calling a baby a juvenile when it's around six or seven months old By that time they have a fair amount of red on their heads and are starting to travel independently more often
(in Hosta) the pre-adult stages of a plant usually exemplified by more pointed, narrower leaves,fewer vein pairs, thinner marginal variegation, faster growth rate, and often smaller leaf and clump size
Strictly speaking, a juvenile is any fish which is not yet sexually mature In the context of this type of fish survey, however, it is most often used interchangeably with young-of-year (YOY)