Youthless

the condition of being young.
the appearance, freshness, vigor, spirit, etc., characteristic of one who is young.
the time of being young; early life:
his youth was spent on the farm.
the period of life from p-b-rty to the attainment of full growth; adolescence.
the first or early period of anything:
the business, even in its youth, showed great potential.
young persons collectively.
a young person, especially a young man or male adolescent.
historical examples

miss mink’s soldier and other stories alice hegan rice
the immortal lure cale young rice

noun (pl) youths (juːðz)
the quality or condition of being young, immature, or inexperienced: his youth told against him in the contest
the period between childhood and maturity, esp adolescence and early adulthood
the freshness, vigour, or vitality characteristic of young people: youth shone out from her face
any period of early development: the project was in its youth
a young person, esp a young man or boy
young people collectively: youth everywhere is rising in revolt
noun
isle of youth, an island in the nw caribbean, south of cuba: administratively part of cuba from 1925. chief town: nueva gerona. pop: 80 600 (2002 est). area: 3061 sq km (1182 sq miles) former name isle of pines spanish name isla de la juventud (ˈizla ðe la xuβenˈtuð)
n.

they said that age was truth, and that the young
marred with wild hopes the peace of slavery
[sh-lley]