Definition
坚不可摧 is a four-character idiom (成语) meaning 'so solid that it cannot be destroyed'. It describes something extremely strong — physical structures, relationships, beliefs, or willpower. Unlike the English 'impregnable', which often refers to fortresses, 坚不可摧 is used more broadly for abstract things like faith, friendship, or determination. It is a set phrase; you cannot change the characters or insert words between them.
f.e.
indestructibleunbreakableimpregnable (of a fortress, will, or relationship)
Examples
- 坚不可摧。Tāmen zhījiān de yǒuyì jiān bú.The friendship between them is unbreakable.
- 坚不可摧，。Zhè zuò gǔ chéngqiáng jiān bú, jīnglì le jǐ bǎi nián fēngyǔ.This ancient city wall is indestructible, having weathered centuries of wind and rain.
- 坚不可摧。Tā duì lǐxiǎng de xìnniàn jiān bú.His faith in his ideals is unshakable.
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