无懈可击 (wú xiè kě jī) | Meaning: (idiom) impossible to fault | Chinese Idiom with Pinyin & Origin

lit. seamless heavenly clothes (idiom) · fig. flawless天衣无缝tiān yī wú fèng

careful; thorough; meticulous周密zhōu mì

(idiom) to make a story or theory consistent; to give a plausible explanation; to plug the holes in one's story自圆其说zì yuán qí shuō

leave no room for · no crack to get in by · no openings (or loophole) to exploit · no weakness to take advantage of无隙可乘wú xì kě chéng

heavily-guarded戒备森严jiè bèi sēn yán

lit. not one drop of water can leak out · watertight · rigorous (argument)滴水不漏dī shuǐ bù lòu

(idiom) impossible to fault · impeccable