unfledged

(a) (of birds) not yet having developed feathers
- a small unfledged sparrow on the window sill
immature,
(s) (of an arrow) not equipped with feathers
- shot an unfledged arrow
fledgeless, unvaned,
(s) young and inexperienced
- a fledgling enterprise
- a fledgling skier
- an unfledged lawyer
callow, fledgling,

immature fledgeless unvaned callow fledgling

fledged mature