long-faced

Displaying sadness.

He was long-faced so we knew she'd turned down his proposal.

"[…] So many people find the world a dreary residence," Mr. Calverley sighed, "that it is really a pity some one of these long-faced stolidities cannot die now instead of me. For I have found life wonderful throughout."

Having a long face.

The majority did not give forth very flattering portraits of him, certainly; nor were they by any means unanimous in their reflections; as some made him very long-faced, others very broad-faced, some tolerably well-looking, others vastly ill-looking, according to their several manners of reflecting: […]

“Aha!” he cried. “So he has found the extra coffee-cup. That is good. He has more intelligence than would appear, this long-faced Monsieur Lawrence of yours!”