From Longman Dictionary of Contemporary Englishapostatea‧pos‧tate /əˈpɒsteɪt, -stət $ əˈpɑː-/ noun [countable] formalRR someone who has stopped believing in a religion or supporting a political party
Examples from the Corpus
apostate• In any event, her being so completely of the West is enviable to an apostate like myself.• Leadership in some is weak, unbelieving and in some cases apostate. 