Functions adjectivally as the past participle of the verb "conceal".
Translations
The concealed door led to a secret room.
Скрытая дверь вела в тайную комнату.
He had a concealed weapon in his jacket.
У него в куртке было утаённое оружие.
The concealed camera captured everything.
Замаскированная камера засняла всё.
Definitions
Kept hidden or secret; not visible or apparent. The concealed door blended perfectly with the wall, making it hard to find.
Carried or kept in such a way as to remain unseen, especially of a weapon. He was arrested for carrying a concealed handgun.