1. 少年 A juvenile is a child or young person who is not yet old enough to be regarded as an adult.
e.g. The number of juveniles in the general population has fallen by a fifth in the past 10 years. 總人口中少年所占比例在過(guò)去10年中下降了1/5。
2. 少年的；未成年的 Juvenile activity or behaviour involves young people who are not yet adults.
e.g. Juvenile crime is increasing at a terrifying rate. 青少年犯罪正在以驚人的速度增長(cháng)。 e.g. ...a scheme to lock up persistent juvenile offenders. 將青少年慣犯關(guān)入監獄的計劃
3. （行為）幼稚的，不成熟的，孩子氣的 If you describe someone's behaviour as juvenile, you are critical of it because you think that it is silly or childish.
e.g. He's a typical male, as he gets older he becomes more juvenile. 他是個(gè)典型的男人，年齡越大越孩子氣。
4. 幼仔；幼獸;雛鳥(niǎo) Young animals are sometimes referred to as juveniles .
juvenile英英釋義
noun
1. a young person, not fully developed
Synonym: juvenile person
adj
1. displaying or suggesting a lack of maturity
e.g. adolescent insecurity jejune responses to our problems their behavior was juvenile puerile jokes
Synonym: adolescentjejunepuerile
2. of or relating to or characteristic of or appropriate for children or young people