Her dour expression said it all.
well in Scotland you say soemone has a "dour dip" ,meaning they have a grumpy or sad face
The town of Dyer, Indiana is dour and unexciting.
A dour expression may conceal a warm heart.
When it has a subject, verb, punctuation, capitalization, a predicate, and a complete thought. A sentence is a sentence when it is handed down by a judge (or a magistrate).