complacency vs discontent

complacency

noun
  • A feeling of contented self-satisfaction, especially when unaware of upcoming trouble. 

  • Passivity as a result of contentment with the current situation. 

discontent

adj
  • Not content; discontented; dissatisfied. 

noun
  • Dissatisfaction. 

  • A longing for better times or circumstances. 

  • A discontented person; a malcontent. 

verb
  • To deprive of contentment; to make uneasy; to dissatisfy. 

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