evenhanded vs unconcerned

evenhanded

adj
  • fair and having no partiality; unbiased; just. 

unconcerned

adj
  • Indifferent and having no interest; aloof. 

  • Not anxious, apprehensive, or worried. 

  • Having no involvement. 

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