disapprobation vs disgruntlement

disapprobation

noun
  • An act or expression of condemnation or disapproval, especially on moral grounds. 

disgruntlement

noun
  • The state of being disgruntled, usually displayed in a stereotypical form such as frowning and annoyance; the acts of sulky dissatisfaction. 

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