forgetfulness vs no-show

forgetfulness

noun
  • Failure to bear in mind; careless omission; inattention. 

  • Loss of remembrance or recollection; a ceasing to remember; oblivion. 

  • The quality of being forgetful; proneness to let slip from the mind. 

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 forgetfulness and no-show occurred in a corpus of books? (source: Google Ngram Viewer )