dictator
//dɪkˈteɪtər//
Noun
dictatorSingular
dictatorsPlural
1
A ruler with total power over a country, typically one who has obtained control by force and rules oppressively.
The dictator ruled the country with an iron fist for over twenty years.
2
A person who behaves in an authoritarian way or who insists on complete obedience from others.
My boss is a real dictator who never listens to anyone's opinions.