1. of, relating to, or occurring in the period after an ecumenical council, especially the Second Vatican Council (1962–1965)
Usage: primarily used in religious and ecclesiastical contexts; often capitalized when referring specifically to the period after Vatican II

Examples

• The postconciliar reforms transformed Catholic liturgical practices.
• Postconciliar theology emphasized dialogue with modern society.
• Many postconciliar bishops implemented the council's directives in their dioceses.
• The postconciliar period saw significant changes in the role of laypeople in the Church.
• Postconciliar documents clarified the Church's stance on ecumenism.