 Both of the terms that make up the label “neutral monism” are problematical. Because the questions to which the notion of neutrality gives rise are unique to neutral monism, they need to be addressed first. Most versions of neutral monism assume a plurality of basic, neutral entities (these could be substances, events, tropes, universals, etc., depending on the specific version of neutral monism in question). What does it mean for an entity to be neutral? Here are five proposals: