confirmed vs undocumented

confirmed

adj
  • having received the rite of confirmation 

  • having a settled habit; inveterate or habitual 

  • verified or ratified 

undocumented

noun
  • Synonym of undocumented immigrant 

adj
  • Lacking instructions or reference material. 

  • Not having official documentation required to legally enter, reside in, or work in a country. 

  • Not having official documents that provide identification, authorization, etc. 

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