What is the meaning of Confessional?

In the manner or style of a confession.

Officially practicing a particular shared religion, as a state or organization; see confessionalism 1.

A small room where confession—the Sacrament of Penance—is performed in private with a priest.

A confession.

A filmed interview in which a cast member speaks directly into the camera commenting on the events of the episode.

confessional

confessionary

Source: wiktionary.org