lucky vs unlucky

lucky

adj
  • Favoured by luck; fortunate; having good success or good fortune. 

  • Producing, or resulting in, good fortune 

noun
  • seven 

unlucky

adj
  • Bringing ill luck. 

  • Having ill luck. 

  • Inauspicious. 

  • Unfortunate, marked by misfortune. 

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