Be out of (someone's) league
Translation of "be out of (someone's) league" into Russian
be out of (someone's) league
быть не по зубам (кому-то)
He thinks she's out of his league.
Он думает, что она ему не по зубам.
Definitions
To be considered much better, more attractive, or more skilled than someone else, often implying that the other person does not have a realistic chance of being with or competing with them.