Closed book to me meaning

What does the saying 'Closed book to me' mean?

Idiom: Closed book to me

Meaning: If a subject is a closed book to you, it is something that you don't understand or know anything about.

Country: International English | Subject Area: General | Usage Type: Both or All Words Used
All idioms have been editorially reviewed, and submitted idioms may have been edited for correctness and completeness.

Similar Idioms

If you have a question about idioms, ask us about it in our Idioms Discussion Forum.

If you know of an idiom that you would like to be listed here, please use our online form to suggest an idiom.

See also: