closed books

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

Synonyms & Similar Words

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Example Sentences

Recent Examples of Synonyms for closed books
Noun
  • As the press release concludes, tropical forests are full of mysteries waiting to be discovered.
    Maria Mocerino, Interesting Engineering, 25 Mar. 2025
  • The story feels like mysteries within a mystery given there are so many staff stories.
    Lexy Perez, The Hollywood Reporter, 24 Mar. 2025
Noun
  • Discover the secrets of these stunning blooms.
    Joe Rassel, Orlando Sentinel, 26 Dec. 2024
  • French women perfume secrets Naturally, French women have been either applying their regular perfume to their hair or using hair fragrance for years.
    Ana Morales, Vogue, 26 Dec. 2024
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.

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“Closed books.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/closed%20books. Accessed 2 May. 2025.

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