† imperaˈtorian,a.Obs. [f. as prec. + -an.] = imperatorial. 1640Somner Antiq.Canterb. 365 That age as much affecting the Imperatorian Brevity, as ours abhorres it.a1670Hacket Abp. Williams i. (1692) 167 He [James I] did so little bear up with an imperatorian resolution against the method of their ways.