ruefulness

1. He rubbed his cheek with pseudo ruefulness.
   他露出假装悔恨的表情摸摸自己的脸颊。

noun

1. sadness associated with some wrong done or some disappointment
   1. he drank to drown his sorrows
   2. he wrote a note expressing his regret
   3. to his rue, the error cost him the game

   Synonym:    sorrowregretrue