confessional

Concise Oxford English Dictionary © 2008 Oxford University Press:
confessional/kənˈfeʃənl/

▶noun

• 1 an enclosed stall in a church, divided by a screen, in which a priest sits to hear confessions.

• 2 a confession.

▶adjective

• 1 (of speech or writing) in which a person reveals or admits to private thoughts or incidents in their past.

• 2 relating to religious confession.

• 3 relating to confessions of faith.

– derivatives
confessionally adverb.