resistance vs rigidness

resistance

noun
  • A force that tends to oppose motion. 

  • The act of resisting, or the capacity to resist. 

  • An underground organisation engaged in a struggle for liberation from forceful occupation; a resistance movement. 

  • electrical resistance. 

rigidness

noun
  • Rigidity. 

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