desirable vs unlucky

desirable

adj
  • Worthy to be desired; pleasing; agreeable. 

noun
  • A thing that people want; something that is desirable. 

unlucky

adj
  • Having ill luck. 

  • Inauspicious. 

  • Bringing ill luck. 

  • Unfortunate, marked by misfortune. 

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