Another word for unchristian

Their first and most notable victim was Philip, the saintly metropolitan of Moscow, who was strangled for condemning the oprichina as an unchristian institution, and refusing to bless the tsar (1569).

The older Protestantism uncompromisingly judged the monastic ideal and life to be both unchristian and unnatural, an absolute perversion deserving nothing but condemnation.

I know it's unchristian, but I'm relieved Burgess is gone.

Cases of discipline are now comparatively rare, and, when they do occur, are not characterized by the bigoted severity which prevailed in former times and was rightly denounced as unchristian.

Here Clement argues that wealth, if rightly used, is not unchristian.