Equipped with or having a ceiling; covered overhead with an interior surface.
From 'ceiling' + '-ed' suffix. 'Ceiling' itself comes from Old French 'ciel' (sky), so '-ed' creates an adjective meaning 'furnished with this thing.'
The word 'ceilinged' sounds awkward to modern ears, which is why architects prefer saying 'with a ceiling' instead—it shows how English word formation has limits in what sounds natural!
Complete word intelligence in one call. Free tier — 50 lookups/day.