immaterial
adjective uk/ˌɪm.əˈtɪə.ri.əl/ us/ˌɪm.əˈtɪr.i.əl/
不重要的，无关紧要的
not important, or not relating to the subject you are thinking about
Whether the book is well or badly written is immaterial (to me) - it has an important message. （我觉得）这本书写得是好是坏并不重要——它给了我们一个重要的启示。
Synonym: incorporeal
Opposite: material (PHYSICAL)