Augustinian adjective 2noun 3forms 1 adjective2 •Of, or relating to St Augustine of Hippo or his doctrines, especially on predestination and grace.I do not subscribe to any Augustinian type split of the world/universe into good or bad, one Godly, one absent of God. — 1995 •Of, or relating to several religious orders influenced by him. noun3 •A follower of St Augustine or his doctrines, especially on predestination and grace. •A friar or monk of any Augustinian order. •(rare, historical) A member of a supposed radical group of the early Reformation, who allegedly believed that humans would not enter Heaven until the Last Judgment.[George] Eder lists […] Augustinians (who were psychopannychists), […] — 1962 formsAugustinians