belletristic

adjective2

1. •
   Of, pertaining to, or having the characteristics of belles-lettres.

   • […] if they do not owe their allegiance to shamanism or Buddhism, then most surely they commit themselves to some perverse form of Confucianism or belletristic foolishness. — 1986
2. •
   Written or appreciated for aesthetic value rather than content

   • I had already concluded that not one of my writings was publishable, having myself analyzed the faults of my belletristic production. — 1992