authoritarian vs autocratic

authoritarian

adj
  • 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. 

noun
  • One who commands absolute obedience to his or her authority. 

  • One who follows and is excessively obedient to authority. 

autocratic

adj
  • Of or pertaining to autocracy or to an autocrat; absolute; holding independent and arbitrary powers of government. 

  • Of or pertaining to the manner of an autocrat. 

How often have the words authoritarian and autocratic occurred in a corpus of books? (source: Google Ngram Viewer )