Past participle of "admit" used adjectivally.
Translations
Only admitted students can attend the lecture.
Только допущенные студенты могут посещать лекцию.
He is an admitted expert in his field.
Он признанный эксперт в своей области.
Definitions
Recognized or acknowledged as valid or true, often reluctantly. It is an admitted fact that the project was over budget.
Allowed to enter or join; having been granted admission. Visitors are admitted only during visiting hours.