disappointed at (someone or something)

disappointed at (someone or something)

Disheartened or upset by someone or something. I know that my parents are very disappointed at my report card this semester.
See also: disappointed
Farlex Dictionary of Idioms.

disappointed at someone or something

 and disappointed in someone or something
becoming sad because of someone or something. I am really disappointed at what you did. I am very disappointed in you. That was a terrible thing to do. They were disappointed in the outcome.
See also: disappointed
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs.
See also:
  • disappointed at
  • disappointed in (someone or something)
  • dissatisfied
  • dissatisfied with
  • dissatisfied with (someone or something)
  • disappoint
  • disappoint (someone or oneself) with (something)
  • disappoint with
  • face falls
  • your face falls