To disestablish a church or religion means to take away its official status, so that it is no longer recognized as a national institution. It would be right to disestablish the church. + disestablishment dis·es·tab·lish·ment Welsh Anglican disestablishment. to officially decide that a particular church is no longer the official church of your country
The act or process of unsettling or breaking up that which has been established; specifically, the withdrawal of the support of the state from an established church; as, the disestablishment and disendowment of the Irish Church by Act of Parliament