0 a subject about which you know or understand nothing:
Schleiermacher's whole account of these matters will be a closed book to such a person, and to any naturalistic perspective.
Verschwiegen translates as 'secretly' or 'silently' or 'discreetly' and is the last word in a phrase comparing the horizon to a closed book of charms, an unfathomable book of secrets.
Lincoln is seated on a tree stump and holds a partially closed book in his proper right hand.
A meta-analysis and critical review of the effects of conventional neuroleptic treatment on cognition in schizophrenia: opening a closed book.
For most of us, the youth culture that creates so many tensions in our communities is a closed book.
After all, a book remains a closed book just as much if you cannot open it as if you cannot read it.
The real nature of those dealings is a closed book for most of us.
At one time schools were a closed book.