adj. 25B6; adjective
the difference in our ages was immaterial : IRRELEVANT, unimportant, inconsequential, insignificant, of no matter/moment, of little account, beside the point, neither here nor there.
the immaterial soul : INTANGIBLE, incorporeal, bodiless, disembodied, impalpable, ethereal, insubstantial; spiritual, unearthly, supernatural.
significant, physical.