Adjective
not furnished with glass
not having a shiny coating
Source: WordNetwindows were unglazed to admit as much light and air as possible Source: Internet
unglazed paper Source: Internet
An experiment to prove the existence of microscopic organisms involves the comparison of water passed through unglazed porcelain and unfiltered water. Source: Internet
Once it was sufficiently gelatinous to hold its form, it was placed on pieces of flannel or unglazed earthenware dishes and rotated regularly to dry it further. Source: Internet
Inland Lapidary On the Mohs scale, a streak plate (unglazed porcelain ) has a hardness of 7.0. Source: Internet
Earthernware ~ unglazed, or if glazed, nothing with bright colors as it might contain mercury and other funky stuff you don't want. Source: Internet