an·ti·no·mi·an [ànti n?mee ?n] noun (plural an·ti·no·mi·ans) Christian believing salvation depends on faith: a Christian who believes that faith and divine grace bring about salvation and that it is therefore not necessary to accept established moral laws adjective 1. having antinomian beliefs: holding antinomian Christian beliefs 2. rejecting fixed moral laws: refusing to accept established moral laws that apply to everybody [Mid-17th century. < medieval Latin Antinomi "antinomians" < Latin antinomia (see antinomy)]