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
  • There are more mysteries to unfurl in future episodes of Pet Cemetery Murders, starting with the isolated Grey Gardens–esque dynamic between Dorothy and her own mother, Grace, who opened the pet cemetery in 1946.
    — Savannah Walsh, Vanity Fair, 12 Oct. 2026
  • As Halzen and countless other scientists have found over the years, Antarctica’s extreme conditions serve as a crucial gateway to understanding some of the greatest mysteries of the cosmos.
    — Daniella McCahey, The Conversation, 12 Oct. 2026
Noun
  • Unfortunately, Jenna sucks at puzzles, and Christian (who the editors are still not allowing to talk) is great at them.
    — Jason P. Frank, Vulture, 8 Oct. 2026
  • 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
Noun
  • Mia Wasikowska plays a woman who moves to a remote mansion with her new husband (Tom Hiddleston) and his sister (Jessica Chastain) and discovers the secrets buried in the earth.
    — Brian Tallerico, Vulture, 8 Oct. 2026
  • And that was just the beginning in terms of secrets for their uppity suburban neighborhood.
    — Jackie Strause, HollywoodReporter, 8 Oct. 2026
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Cite this Entry

“Closed books.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/closed%20books. Accessed 15 Oct. 2026.

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