大错 dàcuò blunder Origin Definitions Defs Strokes Stroke Words Sentences Sents 大错特错 dàcuòtècuò gravely mistaken to be deeply or gravely mistaken; to commit a very serious blunder; describes an error that is extremely severe铸成大错 zhùchéngdàcuò to make a serious mistake (from Zizhi Tongjian) (idiom) to commit a grave and irreversible error; to make a gross blunder