disturbance vs tranquillity

disturbance

noun
  • The act of disturbing, being disturbed. 

  • A noisy commotion that causes a hubbub or interruption. 

  • Something that disturbs. 

  • An interruption of that which is normal or regular. 

  • A serious mental imbalance or illness. 

tranquillity

noun
  • The state of being tranquil; peacefulness, the absence of disturbance or stress; serenity; calm. 

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