disappointment/ˌdɪsə'pɔɪntmənt/

n.

➊ the feeling of being disappointed

➋ sth/sb that makes you disappointed

n.

➊ [U] 失望；沮丧：To our (great) disappointment, he canceled the concert. 让我们失望的是，他取消了音乐会。

➋ [C] 使人失望的人（或事物）：[disappointment to sb] He felt he was a disappointment to his parents. 他觉得自己让父母亲失望。

构词disappoint + -ment