WordNet sense 1 (serving an esthetic rather than a useful purpose):

decorative, ornamental

WordNet sense 2 (not having or performing a function):

nonfunctional

WordNet sense 3 (serving an aesthetic purpose in beautifying the body):

enhancive

WordNet sense 4 (concerning or characterized by an appreciation of beauty or good taste):

aesthetic, Aesthetic, aesthetical, esthetical, esthetic