1 : of or relating to countries or peoples beyond the mountains (such as the Alps) 2 : favoring greater or absolute supremacy of papal over national or diocesan authority in the Roman Catholic Church.

What is a papal mean?

: of or relating to a pope or to the Roman Catholic Church also : resembling a pope or that of a pope. Other Words from papal Example Sentences Learn More About papal.

Is Ultramontanism a heresy?

Other Christian groups outside the Catholic Church declared this as the triumph of what they termed "the heresy of ultramontanism".