depressoid vs mournful

depressoid

adj
  • Depressing or miserable. 

  • Resembling depression. 

noun
  • A depressed or miserable person. 

mournful

adj
  • Filled with grief or sadness; being in a state in which one mourns. 

  • Fit to inspire mourning; tragic. 

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