complacency vs timidity

complacency

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

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

timidity

noun
  • The state of being timid; shyness. 

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