What does "sedevacantism" mean?

The belief, held by a minority of Christians claiming to be traditionalist Catholics, that the present occupant of the Holy See is not the true pope and that the see has been vacant since the 1960s.

How do you pronounce "sedevacantism"?

Pronounced //ˌsɛdɪˈveɪkəntɪzəm//.

Sedevacantism

//ˌsɛdɪˈveɪkəntɪzəm// noun

noun ·Rare ·Advanced level

Definitions

Noun

1
The belief, held by a minority of Christians claiming to be traditionalist Catholics, that the present occupant of the Holy See is not the true pope and that the see has been vacant since the 1960s. uncountable

Etymology

From sede vacante + -ism.

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