Opposing mainstream pop music.

(Christianity) A person who claims or claimed to be the pope, usually as the result of a disputed election or deposition, but is not considered by the Roman Catholic Church to be the real pope.

plural of antipope

plural of antipopulist

(politics) One who opposes populism.

Opposing the people.

Opposing the growing of poppies to produce opium.

Opposition to popery.

plural of antipopulationist

Opposing overpopulation.