appearing or developing early; "precocious flowers appear before the leaves as in some species of magnolias"
characterized by or characteristic of exceptionally early development or maturity (especially in mental aptitude); "a precocious child"; "a precocious achievement"
a juvenile between the onset of puberty and maturity
in the state of development between puberty and maturity; "adolescent boys and girls"
displaying or suggesting a lack of maturity; "adolescent insecurity"; "jejune responses to our problems"; "their behavior was juvenile"; "puerile jokes"
being of the age 13 through 19; "teenage mothers"; "the teen years"
relating to or peculiar to or suggestive of an adolescent; "adolescent problems"