The answer to a question is not or cannot be known. For example, heaven only knows when the war will end.
- Category: Religion
- Contributed By: Linda
Idioms similar to 'Heaven only knows'
Buy our lists of British English, American English and Animal idioms in PDF format. They're perfect to use offline for reference or for use in class!
If you have a question about idioms, ask us about it in our Idioms Discussion Forum.
If you know of an idiom that you would like to be listed here, please use our online form to suggest an idiom.