anonymous vs faceless

anonymous

adj
  • Lacking individuality. 

  • Of unknown name; whose name is withheld 

  • Without any name acknowledged of a person responsible 

  • Lacking a name; not named, for example an animal not assigned to any species. 

faceless

adj
  • Having or revealing no individuality, personality or distinctive characteristics. 

  • Having no face 

  • Having or revealing no individual identity or character; anonymous. 

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