“…Originating from Nietzsche (1885Nietzsche ( /1961 and elaborated by Scheler (1915Scheler ( /1961, it is applied in studies of extremism and fundamentalism (Posłuszna & Posłuszny, 2015;Žižek, 2008), Trumpism (Knauft, 2018;Wimberly, 2018), fanaticism (Katsafanas, 2022), right-wing populism (Salmela & von Scheve, 2017, reactionism (Capelos & Demertzis, 2018;Capelos & Katsanidou, 2018;Sullivan, 2021), narcissism (Demertzis, 2020), terrorism (Posłuszna, 2019(Posłuszna, , 2020, extremism (Mishra, 2017), and cynicism (Capelos et al, 2021;Halsall, 2005). Drawing from studies of emotional mechanisms and their key function of transforming an input emotion into a different output emotion (Elster, 1999;Salice & Salmela, 2022), Salmela and Capelos (2021) approach ressentiment as an emotional mechanism that transmutes political, social, or private grievances felt as deprivation of opportunity, injustice, humiliation, and lack of political efficacy, to anti-social emotional expressions of morally righteous indignation, destructive anger, hatred, and rage.…”