在线词典不知好歹不知道好坏。多指不能领会别人的好意。拼音bù zhī hǎo dǎi解释不知道好坏。多指不能领会别人的好意。近义词不识好歹、不识抬举反义词心知肚明、知好知歹英文释义unable to differentiate good from bad (idiom); not to know what's good for one; unable to recognize others' good intentions