Neo-ultramontanism
Neo-ultramontanism (or new ultramontanism) is the belief of certain Roman Catholics, primarily during the period immediately prior to the First Vatican Council, 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. Although few contemporary historians of the Roman Catholic Church distinguish between neo-ultramontanism and the more moderate ultramontanism of mainstream nineteenth-century Roman Catholicism, there were substantial differences between the two.