Thesaurus results for CLOSED BOOKS

closed books

noun

plural of closed book

as in mysteries

something hard to understand or explain the couple's unorthodox marriage is definitely a closed book to those outside of the relationship

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Recent Examples of Synonyms for closed books

Noun

Answering that question would allow astrophysicists to address other mysteries, such as the precise threshold where a neutron star will collapse to form a black hole.

— Clara Moskowitz, Scientific American, 28 Sep. 2026
Here are eight of the best thrillers and mysteries set in the terrifying world of television.

— L.M. Chilton, PEOPLE, 26 Sep. 2026

Definition of mysteries

Noun

Sign up for The Week's Free Newsletters Join more than 350,000 subscribers and keep yourself informed with a selection of The Week’s most interesting, enlightening and entertaining stories - plus daily puzzles.

— Irenie Forshaw, TheWeek, 30 Sep. 2026
Little ones can color, solve puzzles, read stories, and more in this booklet.

— Anja Webb, Parents, 18 Sep. 2026

Definition of puzzles

Noun

Painful memories force her to confront first her own choices, then personal grief and finally, the family secrets that provide the novel’s distinctly elegiac and holistic tone.

— Bethanne Patrick, Los Angeles Times, 1 Oct. 2026
The hunt for Fed secrets Lee’s efforts to get information about the Fed from Rogers appeared to intensify.

— Eamon Javers, CNBC, 30 Sep. 2026

Definition of secrets

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“Closed books.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/closed%20books. Accessed 3 Oct. 2026.

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noun

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