castoff vs negativism

castoff

noun
  • Something that has been rejected or discarded; a reject. 

adj
  • discarded, rejected. 

negativism

noun
  • A stubborn tendency to do the opposite of what one is asked. 

  • A persistent pessimistic or skeptical attitude. 

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