tyrannical
adjective
1. marked by unjust severity or arbitrary behavior
- a tyrannical parent
- tyrannous disregard of human rights
Similar word(s): domineering, oppressive, tyrannous
2. characteristic of an absolute ruler or absolute rule; having absolute sovereignty
- a tyrannical government
Similar word(s): undemocratic, authoritarian, autocratic, despotic, dictatorial, tyrannic