hapless vs unlucky

hapless

adj
  • unfortunate. 

  • miserable, wretched, unhappy, measly, forlorn. 

  • Very unlucky; ill-fated. 

  • Devoid of talent or skill. 

unlucky

adj
  • Unfortunate, marked by misfortune. 

  • Having ill luck. 

  • Inauspicious. 

  • Bringing ill luck. 

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