acquiescent vs insubordinate

acquiescent

adj
  • willing to acquiesce, accept or agree to something without objection, protest or resistance 

  • resting satisfied or submissive; disposed tacitly to submit 

insubordinate

noun
  • A person who defies authority. 

adj
  • Rebellious or defiant to authority. 

  • Contumacious. 

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