closed book


Also found in: Thesaurus, Idioms, Encyclopedia.

closed book

n.
One that cannot be known or understood.

closed book

n
1. something deemed unknown or incapable of being understood
2. a matter that has been finally concluded and admits of no further consideration
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.closed book - something that baffles understanding and cannot be explainedclosed book - something that baffles understanding and cannot be explained; "how it got out is a mystery"; "it remains one of nature's secrets"
perplexity - trouble or confusion resulting from complexity
References in classic literature ?
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.
She certainly looked very charming as she strolled, lingering along under the budding horse-chestnut trees that stretched their long arms over the park-palings; with her closed book in one hand, and in the other a graceful sprig of myrtle, which served her as a very pretty plaything; her bright ringlets escaping profusely from her little bonnet, and gently stirred by the breeze, her fair cheek flushed with gratified vanity, her smiling blue eyes, now slyly glancing towards her admirer, now gazing downward at her myrtle sprig.
The material achievement and progress of the West was a closed book to her; nor could the West open the book.
With De Sousa's odds being so short from very early on, it is essentially a closed book now.
M2 EQUITYBITES-May 5, 2017-Charles Taylor Completes Acquisition of Closed Book of Life Assurance Business
Target: Closed book of life assurance business of Zurich International Life, Allied Dunbar International Fund Managers
The new method uses terahertz radiation--light with wavelengths that are between microwave and infrared waves--to view the text of a closed book.
That was part of his life he kept as a closed book.
BANKING AND CREDIT NEWS-March 11, 2015-Wesleyan implements Sapiens' Closed Book platform
Teeuwen clearly recognises that a collection of commentaries cannot be a closed book, but rather something more akin to a growing organism, whose component parts have been invented, borrowed, and transcribed (sometimes inaccurately) by many hands.
AXA Financial (AXA), a member of the global AXA Group, has entered into an agreement to sell a closed book of policies from its MONY Life Insurance Company to Protective Life Corporation (Protective) for $1.