unhewn s (of stone especially) not given a finished form by or as if by hewing a house of unhewn grey stone roughly cemented together Usage(s) The first 412 Cornellians were scrambling around the unhewn Ithaca campus in the autumn of 1868. Unjebanenjebet combed the showrooms of the local coffin makers, but found no coffin or unhewn block big enough for him.