Having been officially excluded from participation in the sacraments and services of the Christian Church.
The excommunicated priest found himself isolated from his former congregation.
excommunicateverb
To officially exclude someone from participation in the sacraments and services of the Christian Church.
The church decided to excommunicate the member for heretical beliefs.
To officially exclude or cut off (someone) from participation in the sacraments and fellowship of a Church or, by extension, from membership in any community or group.
In the 18th century, political dissidents were sometimes excommunicated from their guilds.