Born-again

имя прилагательное 1) религия и религиозные культы возродившийся в вере 2) используется в разговорной речи рьяный, ревностный, усердный Например: born-again vegetarian — горячий сторонник вегетарианства

Большой англо-русский словарь

Born-again

adjective Etymology: from the verse “Except a man be born again, he cannot see the Kingdom of God” (John 3:3-Authorized Version) 1. of, relating to, or being a usually Christian person who has made a renewed or confirmed commitment of faith especially after an intense religious experience 2. having returned to or newly adopted an activity, a conviction, or a persona especially with a proselytizing zeal
Example: a born-again conservative

Энциклопедический словарь Мерриама-Вебстера