Glŭm1, a.
a. [See GLOOM.] Frowning; sullen; moody; silent; as, a glum look or person.
3 entries under this word
Glum
Glŭm2, n.
Sullenness. [Obs.] Skelton.
Glŭm3, v. i.
[See GLOOM.] To look sullen; to be of a sour countenance. [Obs.] Chaucer.