[adjective] glummer, glummest - disappointed or unhappy or without hope, and quiet"Why are you so glum?" "I failed my exam."He's very glum about the company's prospects.If a place is glum, it is unattractive and lacks anything that causes pleasure.They live in one glum little room.
GLUM
Meaning of GLUM in English
Cambridge English vocab. Кембриджский английский словарь. 2012