ornamental
1. [ adjective ] serving an esthetic rather than a useful purpose
Synonyms: decorative cosmetic
Examples:

"cosmetic fenders on cars" "the buildings were utilitarian rather than decorative"

Related terms: nonfunctional
2. [ noun ] (botany) any plant grown for its beauty or ornamental value
Related terms: plant
Similar spelling:   ornament
  ornamentalist
  ornamented
  ornamentation