I feel like I really let my team down by missing that penalty
He promised to help, but he let me down at the last minute
Don't let your parents down; study hard for your exams
She was afraid the new equipment would let her down during the competition
The company's poor service has really let its customers down
He felt he had let himself down by not trying his best
We were counting on him to be there, but he let us down
It's important not to let expectations down before they've even started
The horse stumbled, almost letting its rider down
She hated the thought of letting her coach down after all their hard work
I feel so let down by this news.
I understand, it is disappointing.
I had such high hopes.
I feel let down by his broken promise
His broken promise made me disappointed
I was disheartened by his failure to deliver