unglazed

adjective3

1. •
   Not glazed.
2. •
   Having no glaze (no glazed coating).

   • Unglazed tiles, dull rather than glossy, are usually laid on floors—although nothing precludes their use on walls. — 1980
3. •
   Having no glass in the windows; having open spaces as windows, or being windowless.

   • Penmaenmawr station is very basic with an unglazed shelter and a 'next train' indicator. — 2019