1º_ That professes Manichaeism. See Manes . 2º_ By the Manichean doctrine that was based on the confrontation of two opposing forces (Good and Evil, Light and Darkness) is commonly called 'Manichean' who judges any situation by the extremes, without middle ground, also the confrontation between two diametrically opposed concepts where only one or the other can be adopted. See dichotomy .