callow

callow is an   Adverb

Definition:

[1] Destitute of feathers; naked; unfledged. An in the leafy summit, spied a nest, Which, o`er the callow young, a sparrow pressed. Dryden.

[2] Immature; boyish; "green"; as, a callow youth. I perceive by this, thou art but a callow maid. Old Play [1675].

Synonyms: