infernal vs pestiferous

infernal

adj
  • Very annoying; damned. 

  • Of or relating to hell, or the world of the dead; hellish. 

  • Of or relating to a fire or inferno. 

  • Stygian, gloomy. 

  • Diabolical or fiendish. 

pestiferous

adj
  • annoying, vexatious 

  • containing organisms that cause contagious diseases 

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