Nietzsche, though he used various senses of ‘nihilism’, had two main conceptions: nihilism as the belief that life is meaningless (which I term ‘value-nihilism’), and nihilism as negation of life. I argue that value-nihilism is Nietzsche’s main conception of nihilism prior to 1888. Then, in 1888, Nietzsche introduced the conception of nihilism as negation of life. This explains why Christianity is seen as an antidote (though also a cause) of nihilism in the pre-1888 work, and then comes to be seen as intrinsically nihilistic in the 1888 work: Christianity provided a meaning to life, but did so in ways that negated life. I endorse Bernard Reginster’s view of nihilism as a characterisation of value-nihilism; however, it does not explain Nietz...