amoral
adj.
"ethically indifferent," 1882, a hybrid formed from Greek privative prefix a- "not" (see a-(3)) + moral, which is derived from Latin. First used by Robert Louis Stephenson (1850-1894) as a differentiation from immoral.
〔李〕[a-;mor;-ala.] a.不属于道德范畴的； 无从区分是非的 ←mor (L mos,moris)=manner, custom 风俗