Relating to or characteristic of things that are morally or spiritually indifferent; neither good nor bad in themselves.
Formed from 'adiaphora' plus the adjective suffix '-al,' creating an adjective form to describe things that have the quality of being morally neutral or indifferent.
Christian denominations actually split over adiaphoral matters—like whether church organs were okay—because what seems morally neutral to one group felt essential to another, showing how hard it is to define what 'doesn't matter.'
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