adj.愠怒的；闷闷不乐的；阴沉的
The sullen child refused to answer my questions. 那愠怒的孩子拒绝回答我的问题。
She had not come to him today with this feeling of sullen antagonism. 她今天并没有带着这种愠怒的抵触情绪到他这儿来。
A sullen look shaded his face. 闷闷不乐的表情使他的脸蒙上阴影。
This sullen weather disagrees with me. 遇上这种阴沉的天气我就感到不舒服。
adv.不高兴地；闷闷不乐地
