promising vs sorrowful

promising

noun
  • The act of making a promise. 

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

  • a promising young apprentice 

  • Encouraging and inspiring confidence. 

sorrowful

adj
  • exhibiting sorrow; dejected; distraught; sad. 

  • Producing sorrow; causing grief. 

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