belletristical

from The Collaborative International Dictionary of English v.0.48

Belletristic \Bel`le*tris"tic\, Belletristical
\Bel`le*tris"tic*al\, a.
   Occupied with, or pertaining to, belles-lettres. "An
   unlearned, belletristic trifler." --M. Arnold.
   [1913 Webster]