unornamented

adj

1. (not-comparable)Not ornamented; without ornament.

   “Well, I lay it down, first, that a book quite unornamented can look actually and positively beautiful, and not merely un-ugly, if it be, so to say, architecturally good, which, by the by, need not add much to its price […]”

   “The many repetitions of unornamented locomotor movement describing great diagonals do eventually wear.”