be dumb as something
常用于比喻，表示非常愚蠢。
He is as dumb as a rock.
他笨得像块石头。
愚蠢的；笨的；迟钝的
dumber — comparative of dumb
非智能的；无自主处理能力的；暂时说不出话的；哑口无言的；不能说话的；哑的；无意义的,愚蠢的,缺乏智力内容或价值的。；迟钝的,理解力弱的
stupid; foolish; showing or having little intelligence
无意义的,愚蠢的,缺乏智力内容或价值的。
Pointless, foolish, lacking intellectual content or value.
迟钝的,理解力弱的
slow to learn or understand; lacking intellectual acuity; ; ; - Thackeray
缺少同类通常具有的某些功能或特性的。
Lacking some functionality or property ordinarily characteristic of its kind.
暂时无法说话的
temporarily incapable of speaking
不具备自身智能行为或处理能力的。
Not equipped with intelligent behavior or processing capabilities of its own.
不能说话的
lacking the power of human speech
He is so dumb that he keeps asking the same questions.
他真笨，总是问同样的问题。
用法提示：形容词dumb作表语，表示主语智力低下。
AI contextual example
This decision is really dumb.
这个决定实在太愚蠢了。
用法提示：形容词dumb作表语，表示某物缺乏智慧。
AI contextual example
Don't act dumb; you know what I mean.
别装傻了；你知道我是什么意思。
用法提示：形容词dumb作表语，与act连用表示假装愚笨。
AI contextual example
常用于比喻，表示非常愚蠢。
He is as dumb as a rock.
他笨得像块石头。
表示愚蠢导致某种行为。
She was dumb enough to believe him.
她傻到相信了他。
表示因强烈情绪而暂时失语。
He was dumb with shock.
他震惊得说不出话来。
形容词作定语，修饰名词。
He made a dumb mistake.
他犯了一个愚蠢的错误。
grammar · medium
易错句子He is more dumb than me.
正确表达He is dumber than me.
比较级形式错误：dumb的比较级是dumber，而不是more dumb，这是不规则变化。
grammar · medium
易错句子I dumbed when I saw the result.
正确表达I was dumb when I saw the result.
词性误用：dumb是形容词，不能用作动词；表达‘哑口无言’应使用系表结构be dumb。
愚蠢的问题
That was a dumb question.
那是一个愚蠢的问题。
纯属运气
It was just dumb luck that I found it.
我找到它纯属运气。
不会说话的动物
He treats his dog like a dumb animal.
他把他的狗当作不会说话的动物对待。
傻金发女郎
She's tired of the dumb blonde stereotype.
她厌倦了傻金发女郎的刻板印象。
聋哑的
He was born deaf and dumb.
他天生聋哑。
使哑口无言
The news struck her dumb.
这条消息让她哑口无言。
常与“dumb”一同出现，如“deaf and dumb”，指听力障碍。
另一种感官障碍，与“dumb”同属残疾类别。
与学习能力相关，指缺乏读写能力。
指学习或理解速度慢，与“dumb”的“迟钝”义相关。
指说话不清晰或表达困难，与“dumb”的“不能说话”义相关。
装傻
He played dumb when the teacher asked who broke the window.
老师问谁打破了窗户时，他装傻。
傻人有傻福；纯粹的运气
It was just dumb luck that I found my lost wallet.
我找到丢失的钱包纯粹是傻人有傻福。
笨得像块石头
Don't expect him to understand the joke; he's dumb as a rock.
别指望他能听懂这个笑话，他笨得像块石头。
愚蠢的死法，这么多愚蠢的死法。
From the viral song 'Dumb Ways to Die' by Tangerine Kitty, used in a public service announcement about train safety.
来自Tangerine Kitty的病毒式歌曲《Dumb Ways to Die》，用于铁路安全公益广告。
Dictionary facts from DICTIONARY_API_DEV, ECDICT, WIKTIONARY.