Exclusivism: Within Christian theology, the view that salvation is possible (at least for adults since the time of Christ) only for those who explicitly have faith in Jesus. This view is contrasted with inclusivism, which holds that, though people can only be saved through Christ, it is possible that some who lack explicit faith in Christ in this life will be saved by him, and pluralism, which holds that Jesus is not the only means of salvation. More broadly, the term is used for any religious view that holds that salvation is possible only through that particular religion.1
1. C.Stephen Evans, Pocket Dictionary of Apologetics & Philosophy of Religion (Downers Grove, IL: InterVarsity Press, 2002), p. 43.