Main entry: immature, unfledged
Definition: (of birds) not yet having developed feathers
Usage: a small unfledged sparrow on the window sill
Main entry: immature
Definition: not yet mature
Main entry: immature
Definition: characteristic of a lack of maturity
Usage: immature behavior
Main entry: immature, green, unripe, unripened
Definition: not fully developed or mature; not ripe
Usage: unripe fruit; fried green tomatoes; green wood
Definition: (used of living things especially persons) in an early period of life or development or growth
Usage: young people