authoritativeadjective · Level 2 SAT1having the weight of authority; peremptory and dictatorialShe delivered her findings in an authoritative tone that discouraged any challenge from the panel.ModuleLevel 2Registeracademic, argument, toneCollectionCollection 023SAT Plus planAlso in Collection 023apprenticeship, atheistic, barricade, beam, befuddle, acuity, deflect, declamatory and 1 more