authoritarian vs rigid

authoritarian

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

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

  • 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. 

rigid

noun
  • An airship whose shape is maintained solely by an internal and/or external rigid structural framework, without using internal gas pressure to stiffen the vehicle (the lifting gas is at atmospheric pressure); typically also equipped with multiple redundant gasbags, unlike other types of airship. 

  • A bicycle with no suspension system. 

adj
  • Stiff, rather than flexible. 

  • Fixed, rather than moving. 

  • Uncompromising. 

  • Rigorous and unbending. 

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