What does closed book mean?

closed book means "something that baffles understanding and cannot be explained".

What is another word for closed book?

Close synonyms include mystery, enigma, secret. Each sense on this page lists its own synonyms, because a word with several meanings rarely has one substitute that works for all of them.

Is closed book a common word?

closed book is banded "Rare" — specialist or archaic — most readers will not have met it. The band comes from how often the word appears in a large corpus of everyday English, not from an editor's impression.

closed book — meaning, pronunciation and definition

noun

1 senseA person, place, thing, quality or idea.

1.
something that baffles understanding and cannot be explained
“how it got out is a mystery”
“it remains one of nature's secrets”
Synonymsmystery enigma secret
Broaderperplexity

Questions about closed book

What does closed book mean?: closed book means "something that baffles understanding and cannot be explained".
What is another word for closed book?: Close synonyms include mystery, enigma, secret. Each sense on this page lists its own synonyms, because a word with several meanings rarely has one substitute that works for all of them.

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closed book

noun

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