juvenile
Definition
A young person, typically under the age of 18; also refers to something childish or immature.
हिन्दी एक युवा व्यक्ति, आमतौर पर 18 वर्ष से कम आयु का; बचकाना या परिपक्वता रहित कुछ भी।
Example
"The juvenile was charged with the crime but tried in a youth court."