Difference between Fledgling and Callow

Fledgling

Part of speech: noun

Definition: A young bird which has just developed its flight feathers (notably wings). An immature, naïve and/or inexperienced person.

Part of speech: adjective

Definition: untried or inexperienced

Callow

Part of speech: adjective

Definition: Bald.Unfledged (of a young bird).Immature, lacking in life experience. Particularly “callow youth” (young man).Lacking color (of some newly emerged adult insects).Shallow or weak-willed.