out of your depth
US /aʊt əv jʊər dɛpθ/
UK /aʊt əv jʊər dɛpθ/
1.
dépassé, hors de sa profondeur
in a situation that is too difficult for you to understand or deal with
:
•
I felt completely out of my depth in the advanced physics class.
Je me sentais complètement dépassé dans le cours de physique avancée.
•
He's a good manager, but he's out of his depth when it comes to international finance.
C'est un bon manager, mais il est dépassé quand il s'agit de finance internationale.