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
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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
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“Closed books.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/closed%20books. Accessed 3 Jul. 2025.
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