insincerity vs uprightness

insincerity

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

uprightness

noun
  • The state of being honest, honourable, and moral. 

  • The product or result of being upright. 

  • The state of being erect or vertical. 

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