disappoint
🇺🇸
/ˌdɪsəˈpɔɪnt/
🇬🇧
/ˌdɪsəˈpɔɪnt/
to make someone feel sad because what they hoped for did not happen or was not as good as expected
The movie did not disappoint the fans who had waited years to see it.
to stop something that someone hoped for from happening
If he says no, he will disappoint everyone who believed in him.