What is the meaning of Authoritarian?

Of, or relating to, or exhibiting strict obedience to an authority; favoring authoritarianism over civic and individual liberties.

Demanding obedience to authority; marked by authoritarianism; dictatorial, tyrannical.

Tending to impose one's demands upon others as if one were an authority.

One who commands absolute obedience to his or her authority.

One who follows and is excessively obedient to authority.

Source: wiktionary.org