1. 愁眉苦脸：down in the dumps 愁眉苦脸 | down in the mouth 愁眉苦脸 | down on one's luck 倒楣

2. 沮丧,情绪低落：by word of mouth口头上 | down in the mouth沮丧,情绪低落 | from the horse mouth(指劝告,情报等)来自直接参与者的,从可靠的人那里获得

3. 情绪低落：down in the dumps 情绪低落 | down in the mouth 情绪低落 | down jacket 羽绒服

4. 神情沮丧的,垂头丧气：big-mouth 多嘴的人,喋喋不休的 | down in the mouth神情沮丧的,垂头丧气 | mouth off傲慢无礼,顶嘴

adj

1. filled with melancholy and despondency

e.g. gloomy at the thought of what he had to face
gloomy predictions
a gloomy silence
took a grim view of the economy
the darkening mood
lonely and blue in a strange city
depressed by the loss of his job
a dispirited and resigned expression on her face
downcast after his defeat
feeling discouraged and downhearted

Synonym: gloomygrimbluedepresseddispiriteddown(p)downcastdownheartedlowlow-spirited