readjustment vs undoing

readjustment

noun
  • A second or subsequent adjustment. 

undoing

noun
  • Annulment; reversal 

  • Ruin; defeat, (also) that which causes defeat or ruin. 

  • The act of loosening or unfastening 

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