sullen

a. 愠怒的,沉沉不乐的,阴沉的

She never laughed and became very sullen.

她再也没有笑过，变得郁郁寡欢。

Susan is sullen in the morning because she had not sleep well.

苏珊今天早上郁闷不乐，因为昨晚没睡好。