insecurity vs steadfastness

insecurity

noun
  • The state of being subject to danger; vulnerability. 

  • A lack of security; uncertainty. 

  • A lack of confidence in oneself; self-doubt. 

steadfastness

noun
  • Loyalty in the face of trouble and difficulty. 

  • Steadfast resolution. 

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