- One who is elected, or claims to be, pope in opposition
to the pope canonically chosen; esp. applied to those popes who resided
at Avignon during the Great Schism.
Meaning of 'antipope' (Princeton's WordNet)
1 . antipope
[ n]
Meaning (1): - someone who is elected pope in opposition to another person who is held to be canonically elected
Example in sentence:
the antipopes resided in Avignon during the Great Schism