Calvinism Syllabification: (Cal·vin·ism)Pronunciation: /ˈkalvəˌnizəm/Definition of Calvinism noun the Protestant theological system of John Calvin and his successors, which develops Luther’s doctrine of justification by faith alone and emphasizes the grace of God and the doctrine of predestination. Derivatives Calvinist noun CalvinisticPronunciation: /ˌkalvəˈnistik/ adjective Calvinistical adjective Calvinism in other Oxford dictionaries Definition of Calvinism in the British & World English dictionary