Antagony is an American deathcore/metalcore band from the Bay Area of California, United States, formed in 1998, disbanded in 2009, and reformed in 2019. The group are noted for combining their metalcore style with a remarkable amount of death metal influence, which has led to the group to being considered one the pioneers of the deathcore genre. Antagony has released three albums, each on a different record label. Members of Antagony have gone on to form bands such as Oblivion, All Shall Perish.