(of a person) sad or displeased because someone or something has failed to fulfil one's hopes or expectations (人)失望的;沮丧的 I'm disappointed in you, Mary. 玛丽,我对你感到失望。 thousands of disappointed customers were kept waiting. 数千名失望的顾客被迫等着。 ■(of hopes or expectations) prevented from being realized (希望,期望)破灭的