excommunicable

Deliberate erections were considered by some of the Talmudic rabbis to be an excommunicable offense.

Stealing passwords or credit card numbers, for example, is a much more excommunicable deed than merely annoying people with nasty comments.

This is the case, for example, with more serious offenses, as some excommunicable offenses are reserved to the Holy See, and their permission to grant absolution must be obtained.

So was sailing and, of course, water skiing (destroying one's ectoderm was bad enough, but degrading the ecosphere of Gardiners Bay was an excommunicable offense).

A 2006 revision to the Church Handbook of Instructions states that joining another church is also an excommunicable offense; however, merely attending another church does not constitute apostasy.