n someone who is elected pope in opposition to another person who is held to be canonically elected
the antipopes resided in Avignon during the Great Schism
Martin Luther had not been born when John Hus, Roman Catholic priest and rector of the University of Prague, thundered against the corruption of the church under the antipope John.
In some minds it seemed to evoke the picture of a harmless ecclesiastical gentleman on a bicycle, in others that of an antipope.