- unable to differentiate good from bad (idiom)
- not to know what's good for one
- unable to recognize others' good intentions
Characters
- 不 (不): no; not so; (bound form) not; un-
- 知 (知): to know; to be aware
- 好 (好): good; appropriate; proper; all right!; (before a verb) easy to; (before a verb) good to; (before an adjective for exclamatory effect) so; (verb complement indicating completion); (of two people) close; on intimate terms; (after a personal pronoun) hello
- 歹 (歹): bad; wicked; evil; Kangxi radical 78
Resources
- Wiktionary: 不知好歹
- MDBG: 不知好歹
- Examples with 不知好歹 on Tatoeba
Examples
这个小孩不知好歹。