acquiescent vs insolent

acquiescent

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

  • resting satisfied or submissive; disposed tacitly to submit 

insolent

adj
  • Insulting in manner or words, particularly in an arrogant or insubordinate manner. 

  • Rude. 

noun
  • A person who is insolent. 

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