dictaˈtorialism [f.prec. + -ism.] A dictatorial practice, mode of action, or system. 1863M. E. Braddon Eleanor's Vict. I. v. 99 Under the sheltering dictatorialism of a paternal government.1863Mrs. C. Clarke Shaks.Char. ii. 60 The ostentatious moralising and sententious dictatorialism of Jaques.