callow

Of a person: having no hair; bald, bare, hairless.

Of a brick: unburnt.

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.

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

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

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

Of land: having no vegetation; bare.