Everybody is completely different, but puberty tends to end in the late teens/early twenties.
adolescent -- you spelled it correctly
an adolescent youth is a stripling
Your adolescent humor is quite juvenile.
The adolescent was looking forward to becoming an adult. Though she is 50, she has the attitude of an adolescent.
They define adolescent as young adults
To help the adolescent develop social skills.
The duration of The Adolescent - film - is 1.5 hours.
Fluorescent Adolescent was created in 2006-12.
Adolescent cognitive development.
The Adolescent - film - was created on 1979-01-24.
Staying away from sex till marriage
Adolescent stress means that an adolescent (usually associated with the teenage years) is experiencing something that is putting them under stress.