Without feathers, in various senses.

Unfeathered, unfledged.

Of a young bird, or a part of its body: without feathers, unfledged. Also in extended use of other creatures.

= unfledge, v.

Not provided with a plume or plumes; unfeathered.

Unfeathered, unfledged; deprived of feathers.

Not yet furnished or covered with feathers; callow; unfeathered. Also in figurative context.

Having undeveloped feathers; covered as with pinfeathers; = pen-feathered, adj. 1. Now chiefly figurative.

Young and undeveloped; esp. of young birds, unfledged or not fully fledged, newly or lately hatched.

= implumed, adj.

Unfledged.

= sense A. 3.