insincerity vs posing

insincerity

noun
  • Property of being insincere, lacking sincerity or truthfulness. 

posing

noun
  • The act of portraying oneself artificially, usually to make oneself appear grander or to fit in with the crowd; pretense 

  • The act of one who poses or postures. 

  • The act by which something is posed. 

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