NOUN
-
something that baffles understanding and cannot be explained
how it got out is a mystery
it remains one of nature's secrets
How To Use closed book In A Sentence
- I know hardly anything about climate models: anything involving fluid mechanics is pretty much a closed book to me. Climate Bet Details, Bryan Caplan | EconLog | Library of Economics and Liberty
- Nuclear physics is a closed book to most of us.
- I can not believe that it can be right that this late in the game Poetry is still a closed book.
- That part of her life was a closed book and to open it would cause her terrible distress. Times, Sunday Times
- Chemistry is a closed book to me.
- Economics was a closed book to him.
- I tell myself it's a closed book, but my cover story becomes an old man's compensation.
- Mathematics has always been a closed book to me.
- It was a matter of masculine pride that he should walk with them, and he had done so in fair seeming; but women had remained to him a closed book, and he preferred a game of solo or seven-up any time. Chapter XII
- He is holding a closed book, signifying a mystery, possibly a stage in the alchemical process.
