1
it is inconceivable that + clause
用于表达某事难以置信。
It is inconceivable that he would lie to us.
他竟会对我们撒谎，这真是不可思议。
难以置信的；极不可能的
先理解核心含义，再看它在真实句子里的用法。
难以置信的；极不可能的
totally unlikely
It is inconceivable that he would lie to us.
他竟会对我们撒谎，这真是不可思议。
无法想象的；难以置信的
Unable to be conceived or imagined; unbelievable.
完全不可能的,难以想象的
totally unlikely
It is inconceivable that such a small mistake could cause so many problems.
这么小的一个错误竟然会造成这么多问题，真是令人难以置信。
The idea of spending a week without the internet is inconceivable to many people.
对许多人来说，一周不上网的想法是难以想象的。
The manager found it inconceivable that the project had been completed in just two days.
经理觉得难以置信的是，项目竟然在两天内就完成了。
用于表达某事难以置信。
It is inconceivable that he would lie to us.
他竟会对我们撒谎，这真是不可思议。
表示对某人来说难以理解或相信。
The concept of betrayal is inconceivable to a loyal friend.
背叛这个概念对一个忠诚的朋友来说是难以想象的。
The scale of the disaster was inconceivable.
灾难的规模是难以想象的。
修饰名词，表示极大的程度。
They faced an inconceivable challenge.
他们面临一个难以想象的挑战。
Not this
It is inconceivable for me that he could lie.
Use this
It is inconceivable to me that he could lie.
inconceivable 后接介词 to 表示“对某人来说不可想象”，而 for 在此固定搭配中不正确。
Not this
His success is inconceivable!
Use this
His success is unbelievable!
inconceivable 强调“无法想象”或“不可能”，而 unbelievable 强调“难以置信”，常用于表达惊奇。
Not this
It is inconceivable that it rained yesterday.
Use this
It is surprising that it rained yesterday.
inconceivable 用于指无法相信或不可能发生的事，对于实际已发生的事应用 surprising 或 unexpected。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
…是难以想象的；令人难以置信
It is inconceivable that anyone would object to this plan.
很难想象有人会反对这个计划。
几乎难以想象
The scale of the disaster was almost inconceivable.
灾难的规模几乎难以想象。
无法想象
It is inconceivable to imagine losing all your data.
无法想象丢失所有数据的情形。
完全不可思议的；绝对难以想象的
The idea that she would lie is absolutely inconceivable.
她会撒谎的想法完全不可思议。
看似不可思议的
The company achieved a seemingly inconceivable recovery.
这家公司实现了看似不可思议的复苏。
不可思议的想法；难以想象的概念
The concept of time travel used to seem an inconceivable idea.
时间旅行的概念过去似乎是一个不可思议的想法。
不可思议！
In The Princess Bride, Vizzini exclaims "Inconceivable!" so often that Inigo Montoya says, "You keep using that word. I do not think it means what you think it means."
在电影《公主新娘》中，维齐尼经常大喊“不可思议！”，以至于伊尼戈·蒙托亚说：“你一直用这个词，但我觉得它并不是你以为的意思。”
Use inconceivable naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
拆成 in + conceive + ible：conceive 是“构想”，in- 表否定，合起来就是“无法构想、难以置信”。
语域：mixed 常见场景：正式写作/报告、日常口语强调 该词语气较强，正式和口语中都可能用到；正式写作中多指“无法想象”或“难以理解”，日常谈话中常用来强调某事极不可能或让人难以置信。使用时注意勿过度频繁。
以上词都与 inconceivable 同韵，重音都在 -ceive- 或 -lieve- 部分，读作 /ˈiːvəbəl/。注意拼写近似但发音不同的词：inconvenient /ˌɪnkənˈviːniənt/ 意为“不方便的”，conceit /kənˈsiːt/ 和 receipt /rɪˈsiːt/ 均以 /t/ 结尾，不押韵。
Dictionary facts from ECDICT, WIKTIONARY.