adolescent
noun
1. a juvenile between the onset of puberty and maturity
Synonym: striplingteenagerteen
adj
1. in the state of development between puberty and maturity
e.g. adolescent boys and girls
2. displaying or suggesting a lack of maturity
e.g. adolescent insecurity
jejune responses to our problems
their behavior was juvenile
puerile jokes
Synonym: jejunejuvenilepuerile
3. being of the age 13 through 19
e.g. teenage mothers
the teen years
Synonym: teenteenageteenaged
4. relating to or peculiar to or suggestive of an adolescent
e.g. adolescent problems