Characters
- 不 (不): no; not so; (bound form) not; un-
- 得 (得): to obtain; to get; to gain; to catch (a disease); proper; suitable; proud; contented; to allow; to permit; ready; finished
- 而 (而): and; as well as; and so; but (not); yet (not); (indicates causal relation); (indicates change of state); (indicates contrast)
- 知 (知): to know; to be aware
Resources
- Wiktionary: 不得而知
- MDBG: 不得而知
- Examples with 不得而知 on Tatoeba
Examples
这个计划能否成功还不得而知。
当然，那些热水瓶是不是他们自己的就不得而知了。