B1
unhappy because someone or something was not as good as you hoped or expected, or because something did not happen
Dictionary examples:
The superhero was disappointed when his cape didn't help him fly. (0.0)
Tom was disappointed when his pet rock didn't learn any new tricks. (0.0)
The magician was disappointed when he pulled a rabbit out of his hat. (0.0)
His parents were very disappointed in/with him. (20.5)
He was disappointed to find they'd already gone. (22.0)
She was disappointed (that) they hadn't phoned. (23.2)
We were deeply disappointed by/with the results. (32.2)