boredom vs excitation

boredom

noun
  • An instance or period of being bored; A bored state. 

  • The state of being bored. 

excitation

noun
  • The activity produced in an organ, tissue, or part, such as a nerve cell, as a result of stimulation 

  • The act of exciting or putting in motion; the act of rousing up or awakening. 

  • The act of producing excitement (stimulation); also, the excitement produced. 

  • A transition of a nucleus, atom or molecule to an excited state by the absorption of a quantum of energy; the opposite of relaxation 

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