unfun vs untoward

unfun

adj

  • Not fun. 

noun

  • Lack or absence of fun; funlessness. 

untoward

adj

  • Unruly, troublesome; not easily guided. 

  • Unfavourable, adverse, or disadvantageous. 

  • Unseemly, improper. 

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