Definition of "glum" []

• Moody and melancholy; dejected. (adjective)
• Gloomy; dismal. (adjective)
• The quality or state of being moody, melancholy, and gloomy or an instance of it: "He was a charming mixture of glum and glee” ( Lillian Hellman). (noun)
• Chiefly British The blues. Often used with the: "Most other publications have got the glums” ( Tina Brown). (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "It's very hard to remain glum in the face of very high quality dark chocolate-covered caramel."
• "His expression glum, Inspector Norizuki turned his eyes to the ashtray on the table."
• "His demeanor was that of a person who is far from pleased with the course of events, and the word glum best describes his expression."