Youthfulness (11)
I believe the answer is:
adolescence
(Other definitions for adolescence that I've seen before include "Period of strong growth" , "Period before adulthood" , "Puberty" , "Transition to adulthood" , "Youthful period" .)
I believe the answer is:
adolescence
(Other definitions for adolescence that I've seen before include "Period of strong growth" , "Period before adulthood" , "Puberty" , "Transition to adulthood" , "Youthful period" .)