disappoint sb
直接跟宾语，表示使某人不满意。
Her performance disappointed her parents.
她的表现使父母失望。
使失望；辜负
disappoints — third person singular of disappoint
因表现不佳或未兑现承诺或期望而使(某人)感到失望或不满。；剥夺(某人期望或希望的东西)。
fail to meet the hopes or expectations of
因表现不佳或未兑现承诺或期望而使(某人)感到失望或不满。
To sadden or displease (someone) by underperforming, or by not delivering something promised or hoped for.
剥夺(某人期望或希望的东西)。
To deprive (someone of something expected or hoped for).
一般现在时
He disappoints his friends.
他使朋友们失望。
I don't want to disappoint my parents, so I study hard.
我不想让父母失望，所以我努力学习。
用法提示：disappoint 作及物动词，后接宾语，表示“使……失望”。
The movie disappointed many fans who expected a better ending.
这部电影让许多期待更好结局的影迷失望了。
用法提示：disappointed 是过去式，作谓语动词，表示“使……失望”。
She was afraid that her poor grades would disappoint her teacher.
她担心自己糟糕的成绩会让老师失望。
用法提示：disappoint 用在 would 后作动词原形，表示“使……失望”。
直接跟宾语，表示使某人不满意。
Her performance disappointed her parents.
她的表现使父母失望。
用with引出失望的具体原因。
The coach disappointed the team with his decision.
教练的决定使团队失望。
that从句表达令人失望的事实。
It disappointed us that you didn't come.
你没来使我们失望。
更口语化，常用于人际关系
语气较重，指打破理想或幻想
强调幻想破灭，比disappoint更深刻
带有惊慌或无助感，程度更强
可替换disappoint，但语义更广，需上下文明确
grammar · medium
易错句子I am very disappoint.
正确表达I am very disappointed.
disappoint是动词，表示“使失望”，不能直接用于be动词后作表语；应使用过去分词disappointed表示“感到失望的”。
grammar · medium
易错句子I disappoint with the movie.
正确表达I am disappointed with the movie.
disappoint是及物动词，后需接宾语，且不能直接接介词短语表示自己的感受；应使用be disappointed with结构。
与'使失望'相反，表示达到或超过期望，常指满足需求或愿望。
与'使失望'相反，表示带来愉悦或满足感。
与'使失望'相反，表示带来极大快乐或满足。
与'使失望'相反，表示给予所期望的满足或快乐。
disappoint指未达到期望或希望而使人失望；dissatisfy指未能满足要求或标准而使人不满意，程度可能较轻。
disappoint强调希望落空导致的失望；despair指完全失去希望，情绪更强烈。
disappoint是动词，表示使失望；disappointment是名词，表示失望的感觉或令人失望的人/事。
使某人失望
I'm sorry to disappoint you, but I can't come.
很抱歉让你失望，但我不能来。
辜负期望
The team's performance disappointed the expectations of their fans.
团队的表现辜负了球迷的期望。
对……感到失望
She was disappointed with her exam results.
她对考试结果感到失望。
对……感到失望（通常对人）
He was disappointed in his son's behavior.
他对儿子的行为感到失望。
令人失望的结果
The experiment produced disappointing results.
实验产生了令人失望的结果。
失望的表情
He gave me a disappointed look.
他给了我一个失望的表情。
prefix
root
常与disappoint搭配，表示未能达到期望
失望常与希望落空相关
失望通常由不如意的结果引起
未能实现抱负导致失望
未兑现承诺令人失望
失望是智慧之母。
He was disappointed by the outcome, but as the saying goes, disappointment is the nurse of wisdom.
他对结果感到失望，但正如俗话所说，失望是智慧之母。
Dictionary facts from ECDICT, WIKTIONARY.