Sentence:  Arius ... eventually died obscurely, reputedly as the result of an acute attack of dysentery in a latrine in Constantinople, which circumstance afforded his enemies some <WSD>unchristian</WSD> pleasure, and was eventually commemorated with exemplary lack of charity in the Orthodox liturgy. 
Meaning of the word marked with <WSD> tags:  Not in accord with Christian principles; without Christian spirit; unbefitting a Christian.