- Moody and melancholy; dejected.
- Gloomy; dismal.
- 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).
- Chiefly British The blues. Often used with the: "Most other publications have got the glums” ( Tina Brown).