不可思议bù kě sī yìinconceivable; unimaginable; unfathomable
不可思议 (bù kě sī yì) means inconceivable, unimaginable or unfathomable. Literally it means “cannot be thought about or discussed”. Speakers use it when something is so surprising that it seems hard to believe, such as reading a whole book in one evening or a small child playing the piano.
What does 不可思议 mean?
- 1.
inconceivable; unimaginable; unfathomableidiom
- Figurative meaning
- Inconceivable; unimaginable; unfathomable.
- Literal meaning
- Cannot be thought about or discussed.
What do the characters in 不可思议 mean?
- 不(bound form) not; un-
- 可(prefix) can; may; able to; -able
- 思to think
- 议to discuss
Where does 不可思议 come from?
諸佛菩薩有解脫名不可思議。
The story
The phrase comes from the Vimalakirti Sutra, which says that the buddhas and bodhisattvas have a liberation called “the inconceivable”.
How do you use 不可思议?
不可思议 often follows 太、很 or 让人觉得 in everyday speech, and it can end a sentence as a comment on something surprising.
Patterns
太不可思议了
他十分钟就做完了,太不可思议了!
Tā shí fēnzhōng jiù zuò wán le, tài bù kě sī yì le!
He finished in ten minutes. That's incredible!
让人觉得不可思议
这个结果让人觉得不可思议。
Zhège jiéguǒ ràng rén juéde bù kě sī yì.
This result is hard to imagine.
What are some examples of 不可思议 in a sentence?
他一个晚上就看完了这本书,太不可思议了!
Tā yí ge wǎnshang jiù kàn wán le zhè běn shū, tài bù kě sī yì le!
He finished this book in one evening. That's unbelievable!
这么小的孩子会弹钢琴,让人觉得不可思议。
Zhème xiǎo de háizi huì tán gāngqín, ràng rén juéde bù kě sī yì.
It's hard to imagine that such a young child can play the piano.
这件事听起来很不可思议,但这是真的。
Zhè jiàn shì tīng qilai hěn bù kě sī yì, dàn zhè shì zhēn de.
This sounds unimaginable, but it's true.
How is 不可思议 used in a conversation?
- Speaker A:
你知道吗?小李昨天跑了四十公里。
Nǐ zhīdào ma? Xiǎo Lǐ zuótiān pǎo le sìshí gōnglǐ.
Did you know? Xiao Li ran forty kilometres yesterday.
- Speaker B:
四十公里?他上个月才开始跑步啊。
Sìshí gōnglǐ? Tā shàng ge yuè cái kāishǐ pǎobù a.
Forty kilometres? He only started running last month.
- Speaker A:
是啊,我听了也很吃惊。
Shì a, wǒ tīng le yě hěn chījīng.
Yes, I was surprised when I heard it too.
- Speaker B:
太不可思议了!
Tài bù kě sī yì le!
That's unbelievable!
Can you use 不可思议 correctly?
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Related idioms
- 不知不觉bù zhī bù jué(idiom) unconsciously; unwittinglyHSK 7–9
- 不知所措bù zhī suǒ cuònot knowing what to doHSK 7–9
- 不约而同bù yuē ér tóng(idiom) (of two or more people) to take the same action without prior consultation; (usu. used adverbially) all (or both) of them, independently; as if by prior agreementHSK 7–9
- 不言而喻bù yán ér yù(idiom) it goes without saying; it is self-evidentHSK 7–9
- 与众不同yǔ zhòng bù tóng(idiom) to stand out from the crowd; distinctive; different from the restHSK 7–9
- 可想而知kě xiǎng ér zhī(idiom) (it) goes without saying; can well be imaginedHSK 7–9
Browse every entry in the Chinese idioms dictionary.
English glosses on this page are adapted from CC-CEDICT, published by MDBG (snapshot 2026-10-23), licensed under CC BY-SA 4.0. Glosses were edited for learners.