despondently       
adverb uk/dɪˈspɒn.dənt.li/ us/dɪˈspɑːn.dənt.li/
 郁闷地,沮丧地,消沉地
in a way that shows that you are unhappy, with no hope or enthusiasm
  "It's hopeless," he said, shaking his head despondently. “没希望了,”他说,沮丧地摇了摇头。 
 She sat despondently, saying little. 她怅然若失地坐着,没有说什么。 
 See: despondent
 - More examples
 - He could not hide his disappointment and gazed despondently at Cranston.
 - She turned despondently from the window.
 - Mr. Jones shook his head despondently.