In this work, with the aim of clarifying the meaning of "fanatical character" in social sciences, the concepts related to it are studied and systematically reviewed. In this article, we reviewed the theories and perspectives of this theoretical field using the method of document analysis. Finally, by examining the central concept of "extremism", its constituent conceptual elements ("ethnocentrism", "dogmatism", "collective narcissism", "xenophobia", "grudge", "practical violence", "following authority" and " "Mabbi" which are collectively formed around "radical" and "conservative" positions) are examined and separated from each other. Finally, "fanatic character" is introduced as a macro-concept that represents "extremism" in the intellectual field and in the socio-political field (with manifestations such as "authoritarianism" and "fundamentalism") as well as in the field of consumption and entertainment. This work is considered a theoretical effort to disambiguate and organize the concepts of the field of "ideological violence", which ultimately provides a conceptual framework for classifying the concepts of this field under the conceptual umbrella of "prejudice". It also determines the position of this concept in the theoretical system of similar concepts.