fortitude vs indetermination

fortitude

noun
  • Mental or emotional strength that enables courage in the face of adversity. 

indetermination

noun
  • Lack of determination; an unsettled or wavering state, as of the mind. 

  • Lack of fixed or stated direction. 

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