- the dogma that the pope cannot err in a solemn teaching addressed to the whole church on a matter of faith or morals.
Origin of papal infallibility
First recorded in 1865–70
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for papal infallibility
He strongly opposed the papal-infallibility movement, and took the side of Mr. Gladstone in his attacks on Vaticanism.