depravity vs unfun

depravity

noun
  • A particular depraved act or trait. 

  • Inborn corruption, entailing the belief that every facet of human nature has been polluted, defiled, and contaminated by sin. 

  • The state or condition of being depraved; moral debasement. 

unfun

noun
  • Lack or absence of fun; funlessness. 

adj
  • Not fun. 

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