A person who is in adolescence; someone who has reached puberty but is not yet an adult.
Of, relating to, or at the age of adolescence; at the stage between being a child and an adult.
An immature, naïve or inexperienced person.
A young bird which has just developed its flight feathers (notably wings).
An insect that has just fledged, i.e. undergone its final moult to become an adult or imago.
Emergent or rising.
Untried or inexperienced.