Someone who is glum is sad and quiet because they are disappointed or unhappy about something.
例句
She was very glum and was obviously missing her children.她郁郁寡欢，显然在惦念自己的孩子们。
英汉词典释义
adj.
闷闷不乐的,忧郁的
She laughed at his glum face.她嘲笑他闷闷不乐的脸。
n.
闷闷不乐,忧郁
He was a charming mixture of glum and glee.他是一个很有魅力的人，时而忧伤时而欢笑。
英英词典释义
Adjective
1. reflecting gloom;
"gloomy faces"
2. showing a brooding ill humor;
"a dark scowl""the proverbially dour New England Puritan""a glum, hopeless shrug""he sat in moody silence""a morose and unsociable manner""a saturnine, almost misanthropic young genius"- Bruce Bliven"a sour temper""a sullen crowd"