Countless theoretical texts have been written regarding the centrality of hatred as a force that motivates intergroup conflicts. However, surprisingly, at present, almost no empirical study has been conducted either on the nature and character of group-based hatred or on its implications for conflicts. Therefore, the goal of the current work has been to examine the nature of group-based hatred in conflicts. Three studies were conducted within the context of the Israeli-Palestinian conflict. The first was a qualitative study, which aimed at creating a preliminary platform for investigation of specific features of group-based hatred. Studies 2 and 3 used various scenarios and survey methods to indicate the appraisal and the behavioral aspects of group-based hatred and to distill them from those of other negative emotions, such as anger or fear. In general, results show that hatred is a distinct emotion that includes a unique cognitive-appraisal component and specific emotional goals. © 2008 Sage Publications.