He was unhappy about the decision to cancel the event.
unhappy about
Frequency:
50
%
They were unhappy about the outcome of the game.
unhappy about
Frequency:
45
%
She was unhappy about the results of the test.
Idiomatic Expressions for unhappy about
Phrase: make someone unhappy about
Meaning: to cause someone to feel dissatisfied or displeased with something
Usage: The company's decision to cut benefits made many employees unhappy about their job.