tyrannical
adjective
[ tɪˈranɪk(ə)l ]
• exercising power in a cruel or arbitrary way.
• "a tyrannical government"
Similar:
dictatorial,
despotic,
autocratic,
oppressive,
repressive,
fascistic,
tyrannous,
absolute,
totalitarian,
arbitrary,
undemocratic,
anti-democratic,
illiberal,
authoritarian,
domineering,
dominating,
overbearing,
high-handed,
imperious,
bullying,
harsh,
strict,
iron-handed,
iron-fisted,
severe,
cruel,
brutal,
ruthless,
unjust,
Neronian,
Origin:
mid 16th century: from Old French tyrannique, via Latin from Greek turannikos, from turannos (see tyrant).