disregard vs no-show

disregard

noun
  • The act or state of deliberately not paying attention or caring about; misregard. 

verb
  • To ignore; pay no attention to. 

no-show

noun
  • An absence; failure to show up or to make a scheduled appearance, especially at a hotel or a place of employment. 

  • A person or group that does not show up. 

verb
  • To fail to show up for something. 

How often have the words disregard and no-show occurred in a corpus of books? (source: Google Ngram Viewer )