不知好歹 Save Create a free account to save words bùzhīhǎodǎi ㄅㄨˋ ㄓ ㄏㄠˇ ㄉㄞˇ 男 女 unable to differentiate good from bad (idiom) not to know what's good for one unable to recognize others' good intentions Character by character 不(bù)no 知(zhī)know 好(hǎo)good 歹(dǎi)bad Sign up for a free account to save words and review them A Chinese word or character, or English Search Sources CC-CEDICT, CC BY-SA 4.0 pinyinjs, Apache-2.0