The state of being in one's teenage years.
The transitional period of physical and psychological development between childhood and maturity.
‘During adolescence, the body and mind go through many complex changes, some of which are difficult to deal with.’;
The state of growing up from childhood to manhood or womanhood; youth, or the period of life between puberty and maturity, generally considered to be, in the male sex, from fourteen to twenty-one. Sometimes used with reference to the lower animals.
the time period between the beginning of puberty and adulthood
in the state that someone is in between puberty and adulthood
Adolescence (from Latin adolescere 'to grow up') is a transitional stage of physical and psychological development that generally occurs during the period from puberty to legal adulthood (age of majority). Adolescence is usually associated with the teenage years, but its physical, psychological or cultural expressions may begin earlier and end later.