The metaethical position usually concerns the truth or justificationof moral judgments, and it has been given somewhat differentdefinitions. Metaethical relativists generally suppose that manyfundamental moral disagreements cannot be rationally resolved, and onthis basis they argue that moral judgments lack the moral authority ornormative force that moral objectivists usually contend these judgmentsmay have. Hence, metaethical relativism is in part a negative thesisthat challenges the claims of moral objectivists. However, it ofteninvolves a positive thesis as well, namely that moral judgmentsnonetheless have moral authority or normative force, not absolutely oruniversally (as objectivists contend), but relative to some group ofpersons such as a society or culture. This point is typically made withrespect to truth or justification (or both), and the followingdefinition will be a useful reference point:


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