goof vs unfun

goof

noun
  • A foolish and/or silly person; a goofball. 

  • An error made during production which finds its way into the final release. 

  • A mistake or error. 

  • A child molester. 

verb
  • To make a mistake. 

  • To engage in mischief. 

unfun

noun
  • Lack or absence of fun; funlessness. 

adj
  • Not fun. 

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