Of an act, work, etc.: characteristic of a young or inexperienced person; juvenile; naive; (of experience) minimal.

figurative. Immature, inexperienced; naive. Also: characterized by immaturity or naivety. Cf. green, adj. 8c, unfledged, adj. 3.

transferred. Wild, frisky, untrained.

Of a young bird: having undeveloped feathers; having feathers without vanes, i.e. with quills only; not fully fledged. Also figurative.

Resembling a kitten or that of a kitten; inexperienced; diminutive.

Pertaining to, characteristic of, youth and inexperience.

That has been made into a codling (codling, n.2 1a); immature, inexperienced. Cf. codling, n.2 2.

Akin to or resembling a calf; figurative raw, untrained.

Resembling a cub; awkward, uncouth, unpolished.

figurative. Imperfectly developed; immature; characterized by youthful immaturity.

Of or relating to a student at a prep school (prep school, n. 1); typical of or associated with those educated at such schools, esp. in displaying…