1
it is unthinkable that + clause
用于强调某件事完全不可能或难以接受。
It is unthinkable that they would betray their friends.
他们背叛朋友是不可思议的。
难以想象的；不可思议的
先理解核心含义，再看它在真实句子里的用法。
难以想象的；不可思议的
impossible to imagine or consider as possible
It is unthinkable that they would betray their friends.
他们背叛朋友是不可思议的。
无法相信的。
That cannot be believed.
无法想象或考虑
incapable of being conceived or considered
不可思议或难以想象的；极其不可能,违背常理的。
Inconceivable or unimaginable; extremely improbable in a way that goes against common sense.
极其不当的；与预期行为规范严重不符的。
Extremely improper; extremely at odds with norms of expected behavior.
It is unthinkable that she would leave her children behind.
她竟会把孩子抛下，真是难以想象。
The idea of traveling to Mars was unthinkable a century ago.
一个世纪前，前往火星的想法还是难以想象的。
For many people, losing their job is an unthinkable situation.
对许多人来说，失业是一种难以想象的处境。
用于强调某件事完全不可能或难以接受。
It is unthinkable that they would betray their friends.
他们背叛朋友是不可思议的。
It was unthinkable for her to leave her hometown.
对她来说离开家乡是不可想象的。
表示主观认为某事不可接受或难以置信。
Most people find such cruelty unthinkable.
大多数人认为这种残忍不可想象。
Not this
He unthinkable the consequences.
Use this
He thinks the consequences are unthinkable.
学习者误将形容词'unthinkable'用作动词。在英语中，'unthinkable'是形容词，不能直接作谓语，需使用系动词be或搭配think等动词构成系表结构。
Not this
It is unthinkable he would lie.
Use this
It is unthinkable that he would lie.
在'It is unthinkable + 从句'结构中，从句前通常需要连接词that，不可省略。中文表达'无法想象他会说谎'不需要连接词，易导致漏用。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
难以想象的悲剧
The earthquake caused an unthinkable tragedy.
地震造成了一场难以想象的悲剧。
不可想象的行为
He committed an unthinkable act of violence.
他犯下了不可想像的暴力行为。
无法想象的情况
We found ourselves in an unthinkable situation.
我们发现自己处于无法想象的情况。
不可想象的后果
The decision could have unthinkable consequences.
这个决定可能会产生不可想象的后果。
不可思议的想法
The thought of losing her was unthinkable.
失去她的想法是不可想象的。
难以想象的事件
A nuclear war is an unthinkable event.
核战争是难以想象的事件。
考虑不可能或可怕的事情
In the board meeting, we had to think the unthinkable and plan for a worst-case scenario.
在董事会上，我们不得不考虑最坏的情况，为最糟糕的局面做打算。
难以想象的事情（尤指坏事）
When the unthinkable happened and the company went bankrupt, everyone was shocked.
当那件难以想象的事情发生，公司破产时，所有人都震惊了。
这是无法想象的
The thought of losing him was unthinkable.
失去他的想法是无法想象的。
Use unthinkable naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
将unthinkable拆解为un（不）+think（想）+able（能），即‘不能想的’，联想到‘无法想象的事情’。
语域：formal 常见场景：政治、社会问题、灾难、伦理讨论 通常用于正式或严肃的语境，多出现在书面语或新闻报道中，表示某事完全不可想象或不可能发生。
常用于it作形式主语的句型，后接that从句或不定式
Dictionary facts from ECDICT, WIKTIONARY.