
Sound like a know-it-all

Translation sound like a know-it-all into russian
sound like a know-it-all
He didn't mean to sound like a know-it-all, but he couldn't help it.
Он не хотел звучать как всезнайка, но не мог с этим ничего поделать.
Definitions
To behave or speak in a manner that suggests one has extensive knowledge or expertise on a subject, often to the point of being arrogant or dismissive of others' opinions.