discouraging vs grim

discouraging

adj

  • that causes discouragement 

noun

  • discouragement 

grim

adj

  • Dismal and gloomy, cold and forbidding. 

  • Rigid and unrelenting. 

  • Ghastly or sinister. 

  • Disgusting; gross. 

verb

  • To make grim; to give a stern or forbidding aspect to. 

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