noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   The belief of certain Catholics, primarily during the period immediately prior to Vatican I, that papal infallibility was not restricted to a small number of papal statements but applied ipso facto (by virtue of being said by the Pope) to all papal teachings and statements. uncountable

Etymology

From neo- + ultramontanism.

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.