fortunate vs lucky

fortunate

adj
  • Happening by good luck or favorable chance. 

  • Favored by fortune. 

  • Auspicious. 

lucky

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

  • Producing, or resulting in, good fortune 

noun
  • seven 

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