avoider vs free spirit

avoider

noun
  • One who avoids, shuns, or escapes. 

  • One who carries anything away, or the vessel in which things are carried away. 

free spirit

noun
  • One who is a nonconformist or who does not recognize the authority of others. 

  • A member of the organized heretic movement Brethren of the Free Spirit in opposition of the Catholic Church from the 13th to 15th centuries. 

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