disappointed vs unsatisfied

disappointed

adj
  • Expressing or indicating disappointment. 

  • Defeated of expectations or hope; experiencing disappointment; let down. 

  • Having had a marriage proposal rejected. 

unsatisfied

adj
  • Not satisfied, especially with the quantity of something; dissatisfied; uncontented. 

  • Not gratified; not having been fulfilled or met. 

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