indisposition vs tiredness

indisposition

noun
  • A bad mood or disposition. 

  • A state of not being disposed to do something; disinclination; unwillingness. 

  • A mild illness, the state of being indisposed. 

tiredness

noun
  • The state of being tired. 

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