adiaphorous,a.|ædɪˈæfərəs|[f.Gr.ἀδιάϕορ-ος indifferent + -ous.]1.Indifferent, immaterial, non-essential; neutral.1635F. WhiteSabbath 27Divine Lawes..command or prohibite actions, which before the position of the outward Law, are adiaphorous.1647Jer.Taylor Lib. Prophes.Ep.Ded.7Matters adiaphorous, as meats and drinks and holy dayes.Ibid.v. 93We are taught to have no obligation in them but to be adiaphorous.1657TomlinsonRenou's Disp. 220Wine therefore is adiaphorous and indifferent, good or evil, as its use is good or evil.1748HartleyObserv.on Man i. ii. §1. 116The Sensations[the tangible Qualities of Bodies]are for the most part, adiaphorous ones.†2.Chem.Neutral in chemical properties; neither alkaline nor acid. Obs.a1691Boyle (J.)Our adiaphorous spirit may be obtained, by distilling the liquor that is afforded by wood and divers other bodies.3.Med.Incapable of doing either harm or good.Webster cites Dunglison.