belletristic vs scholarly

belletristic

adj
  • Of, pertaining to, or having the characteristics of belles-lettres. 

  • Written or appreciated for aesthetic value rather than content 

scholarly

adj
  • Of or relating to scholastics or scholarship. 

  • Characteristic of a scholar. 

adv
  • In a scholarly manner 

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