hopeful vs irrecoverable

hopeful

adj
  • inspiring hope 

  • feeling hope 

noun
  • Someone who is hoping for success or victory, especially as a candidate in a political election. 

irrecoverable

adj
  • That cannot be recovered from or made good; irremediable. 

  • Not recoverable; incapable of being recovered. 

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