closed book (0 synonym found)

We don't have synonyms for closed book yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are closed loop, closed door and closed books.

We don't have any synonyms for closed book yet.

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closed loop  ·  closed door  ·  closed books  ·  a closed book

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Definition of closed book:

(n) : (idiomatic) A person or thing that cannot be easily understood; someone or something incomprehensible or puzzling.
Definition of closed book:

(n) : (idiomatic) A person or thing that cannot be easily understood; someone or something incomprehensible or puzzling.
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