unfledged

adjectives

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