Devil's advocate

Meaning

Someone who argues a counterpoint for the sake of debate.

Usage

Used in meetings to test ideas by challenging them.

Origin & History

Origins and dates here are approximate summaries. Many idioms have disputed or unknown origins, and not every date has been checked against a historical dictionary, so treat specific dates and stories as a starting point rather than a citation.

From the Catholic Church official who argued against canonizations.

Became secular shorthand for intentional skepticism in the 20th century.