Definition of tyrannical adjective from the Oxford Advanced American Dictionary

     

    tyrannical

     adjective
    adjective
    NAmE//təˈrænɪkl//
     
    (formal tyrannous
    NAmE//ˈtɪrənəs//
     
    )
     
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  1. 1using power or authority over people in an unfair and cruel way synonym dictatorial
  2. 2 tyrannical power a tyrannical government He was brought up by a cruel and tyrannical father.
See the Oxford Advanced Learner's Dictionary entry: tyrannical