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adj. glum·mer, glum·mest
1. Moody and melancholy; dejected.
2. Gloomy; dismal.
1. 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).
2. glums Chiefly British The blues. Often used with the: "Most other publications have got the glums" (Tina Brown).
[Probably akin to Middle English gloumen, to become dark; see gloom.]