音标：英 /ˌdɪsəˈpɔɪntɪd/，美 /ˌdɪsəˈpɔɪntɪd/
词性：形容词（adj.）
核心含义：因期待未达成或结果不理想而感到沮丧、失意的情绪状态。强调个人主观感受，即“感到失望的”，而非客观上“令人失望的”（后者用disappointing）。
介词搭配
at/about：后接具体事件或结果，表示“对……失望”。
例：We were deeply disappointed at the result.（我们对这个结果深感失望。）
with：后接事物，表示“对某事物的质量或表现失望”。
例：I was disappointed with the service at the restaurant.（我对餐厅的服务感到失望。）
in：后接人，表示“对某人的行为或表现失望”。
例：You should have accepted that. I'm disappointed in you.（你本该接受的，我对你很失望。）
by：后接动作或行为的发出者，表示“被……失望”。
例：He was disappointed by her response to his proposal.（她对他提议的反应让他失望。）
动词搭配
be disappointed (that)：接从句说明失望的原因。
例：She was disappointed (that) they hadn't phoned.（他们没来电话让她很失望。）
feel/get disappointed：强调情绪的产生过程。
例：She felt disappointed when she didn't get the job.（没得到工作时，她感到很失望。）
If you're expecting Dad to let you borrow his car, you're going to be sorely disappointed.（如果你指望爸爸借车给你，你会失望透顶的。）
I was a bit disappointed in my main course, actually. The sauce was too rich.（其实我对主菜有点失望，调味汁太浓了。）
Castle-hunters won't be disappointed with the Isle of Man.（马恩岛不会让城堡探寻者失望。）
Disappointed? I was gutted!（失望？我简直心碎了！）
She was disappointed not to be chosen for the team.（没被选入团队让她很沮丧。）
We feel disappointed in ourselves and ashamed.（我们对自己感到失望和羞愧。）
He was disappointed over the criticism his speech had aroused.（他因演讲引发的批评而失望。）
I'm disappointed with the quality of the wine—it tasted nothing like the description.（我对这瓶酒的质量失望，它和描述完全不符。）
| 词语 | 词性 | 含义 | 用法示例 |
|---|---|---|---|
| disappointed | 形容词 | 感到失望的（主观） | She was disappointed by the news. |
| disappointing | 形容词 | 令人失望的（客观） | The movie was disappointing. |
| disappointment | 名词 | 失望（抽象情感） | The result was a big disappointment. |
| disappointedly | 副词 | 失望地（修饰动作） | He shook his head disappointedly. |
提示：在表达强烈失望时，可使用副词如sorely（极度地）、bitterly（痛苦地）加强语气，如“bitterly disappointed at the loss”（因失败而痛苦失望）。日常口语中，也可用“let down”替换，如“I felt let down by his promise”（他的承诺让我失望）