grievance vs inflammatory

grievance

noun
  • Something which causes grief. 

  • A formal complaint, especially in the context of a unionized workplace. 

  • Feelings of being wronged; outrage. 

  • A wrong or hardship suffered, which is the grounds of a complaint. 

  • Violation of regulations or objectionable behavior. 

  • A complaint or annoyance. 

inflammatory

noun
  • Any material that causes inflammation 

adj
  • Tending to inflame or provoke somebody. 

  • Relating to, causing, or caused by inflammation. 

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