approval vs displeasure

approval

noun
  • Something mailed by a seller to a collector to match their stated interests; the collector can approve of or return the item. 

  • An expression granting permission; an indication of agreement with a proposal; an acknowledgement that a person, thing, or event meets requirements. 

  • An expression of favorable acceptance and encouragement; a compliment that also condones. 

displeasure

noun
  • A feeling of being displeased with something or someone; dissatisfaction; disapproval. 

  • That which displeases; cause of irritation or annoyance; offence; injury. 

  • A state of disgrace or disfavour. 

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