promising vs unlucky

promising

adj
  • Showing promise, and likely to develop in a desirable fashion. 

  • a promising young apprentice 

  • Encouraging and inspiring confidence. 

noun
  • The act of making a promise. 

unlucky

adj
  • Bringing ill luck. 

  • Having ill luck. 

  • Inauspicious. 

  • Unfortunate, marked by misfortune. 

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