unhappiness [ʌnˈhæpɪnɪs]

例句:

• There was a lot of unhappiness in my adolescence.
  年少时我经历过很多不愉快。
  
• His laugh-a-minute image is just a front to hide his deep unhappiness.
  他滑稽可笑的形象只是用来掩饰内心深处痛苦的假面具。
  
• He had sensed his mother's unhappiness.
  他感觉到了母亲的不悦。
  
• People mistake his constant focus and thought with unhappiness.
  来自WSJ
• Constance was furious beyond reason at his unflagging unhappiness.
  来自NEWYORKER
• Commuting is connected to social isolation, which causes unhappiness.
  来自NEWYORKER