non-utilitarian       
adjective (also nonutilitarian) uk/ˌnɒn.juː.tɪ.lɪˈteə.ri.ən/ us/ˌnɑːn.juːˌtɪl.əˈter.i.ən/
 不实用性的|非实用的
decorative and not designed to be useful
  This architect specializes in taking a nonutilitarian approach to the most functional of buildings. 这位设计师擅长把装饰性元素融入到建筑的功能性区域。 
 The number of non-utilitarian objects found in the ruins indicated that it had been the house of a wealthy family.  从残垣断瓦中找到的装饰型品的数量显示这曾经是一个富有家庭的宅子。 
 - More examples
 - These woodworkers have moved away from furniture to making nonutilitarian souvenirs.
 - Although in fact highly effective, these tools have a surprisingly non-utilitarian look to them.
 - High fashion revels in its non-utilitarian approach to clothing.