A modern dictionary of Catholic terms, both common and obscure. Find accurate definitions of words and phrases.
Unfaithfulness to one's marriage vows by having sexual relations with a person other than one's lawfully wedded spouse. It is equivalent to adultery. According to the Church's constant tradition, infidelity is sufficient grounds for separation and even civil divorce, but not for divorce with the right to remarry.
All items in this dictionary are from Fr. John Hardon's Modern Catholic Dictionary, © Eternal Life. Used with permission.