Of leather or hide: undressed, untanned. Also of shoes, etc.: made of such hide. Cf. sense 7a.

In a natural state; not yet processed or worked. Of sinew: untreated. Of leather or hide: untanned; undressed. Cf. rawhide, n. adj., green, adj. 6b.

That has not been prepared or treated for consumption or use. Of an animal skin: raw, untanned, unseasoned.

Not subjected to tanning.

(un-, prefix1 affix 2 + taw, v.1 2.)

Not treated with bark; untanned. Obsolete. rare.