dispassionate vs eager

dispassionate

adj
  • not showing, and not affected by, emotion, bias, or prejudice 

eager

adj
  • Not employing lazy evaluation; calculating results immediately, rather than deferring calculation until they are required. 

  • Desirous; keen to do or obtain something. 

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