a closed book (a closed book)

Idiom Literature

Signification

something or someone that is difficult to understand

quelque chose ou quelqu'un qui est difficile à comprendre (quelque chose ou quelqu'un qui est difficile a comprendre)

"He’s a closed book when it comes to his personal life."

"C'est un livre fermé quand il s'agit de sa vie personnelle." (c'est un livre ferme quand il s'agit de sa vie personnelle)

a controversial or sensitive political issue

to be completely focused or revolve around something

to believe in someone's decision or ability to make good cho...

to have the right to speak in a discussion

expressing one’s own personal view

to prevent something from happening