The following article will attempt to present characteristics of religious fundamentalism. The task requires addressing terminological and methodological issues, which seem to constitute the weakest link in the overall research of the phenomenon. Even a cursory analysis of the available data points to the fact, that comparative studies are in minority, while an overwhelming majority of all research focuses on particular instances of fundamentalism, most commonly within one specic religion. ree preliminary observations can be made. Firstly, usually the case is that of either methodological maximalism or minimalism. The work edited by Martin E. Marty and R. Scott Appleby Fundamentalisms Observed, signicant as it was, can serve as a valid example of maximalist approach. The phenomenon discussed therein is viewed in the broad perspective, thus it becomes almost synonymous to traditionalism, nationalism, orthodoxy or communalism.