callow

Immature, inexperienced, or naive.

(figurative) Lacking life experience; immature, inexperienced, naive; also, of or relating to something immature or inexperienced.

Having no hair; bald, bare, hairless.

Of a young bird, or (part of) its body: having not developed feathers yet; featherless, unfledged; hence, of other animals or their bodies: having no fur or hair; furless, hairless, unfurred.

In the life cycle of an animal: newly born or hatched; juvenile.

(Ireland) Of land: low-lying and near a river, and thus regularly submerged.

Of a brick: unburnt.

Synonym of teneral (“of certain insects or other arthropods such as spiders: lacking colour or firmness just after ecdysis (“shedding of the exoskeleton”)”).

(no longer used) Of land: having no vegetation; bare.

An alluvial flat.

Synonym of teneral (“an insect or other arthropod such as a spider which has just undergone ecdysis (“shedding of the exoskeleton”) and so lacks colour or firmness”).

(Ireland) A low-lying meadow near a river which is regularly submerged.

(no longer used) A young bird which has not developed feathers yet; a nestling.

(UK, no longer used) The upper layer of rubble in a quarry which has to be removed to reach the material to be mined.

(no longer used) Synonym of topsoil (“upper layer of soil”).

(figurative, no longer used) A person lacking life experience; an immature or naive person.