antimoral

adj

1. Opposing or countering moral behaviour.

   “Here, then, we have Shelley the idolator of nature; Keats, the idolater of beauty; Byron, the idolator of passion; Byron, immoral; Keats, unmoral; Shelley, anti'''moral; or, if we had some other prefix, like a Greek derivative, to express the absolute negative of the received moral principles that govern the world.”