closed book
something that is not known or cannot be understood; a mystery or puzzle: Abstract art is a closed book as far as I'm concerned.
Origin of closed book
1Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024
How to use closed book in a sentence
The girl sat with closed book, looking at his face as he slept.
Wayside Courtships | Hamlin GarlandI love novels, but there is no wonderful novel which I so much should like to read as the closed book which is your soul.
Polly the Pagan | Isabel AndersonHe does not read, and so knows nothing of the inspiration of literature, and the past is to him a closed book.
Spirit and Music | H. Ernest HuntAlthough Valentine and his two comrades might interrogate the desert, it remained dumb and indecipherable as a closed book.
The Pirates of the Prairies | Gustave AimardHer face turned deadly pale, and she clenched the closed book in her pallid hands.
Hubert's Wife | Minnie Mary Lee
British Dictionary definitions for closed book
something deemed unknown or incapable of being understood
a matter that has been finally concluded and admits of no further consideration
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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