(of a person) sad or displeased because someone or something has failed to fulfill one's hopes or expectations.
Julie was disappointed that her friends couldn't come.
She felt disappointed when her favorite team lost the championship match.
The students were disappointed to learn that the field trip was canceled due to bad weather.
Despite their hard work, the team was disappointed with the final outcome of the project.
He tried to hide it, but it was clear from his expression that he was disappointed with the news.
