1. Not admitting of moral distinctions or judgments; neither moral nor immoral. 2. Lacking moral sensibility; not caring about right and wrong.
See: Psychopathy personality traits Authoritarian Personality Traits
"[American leaders] are perhaps not so much immoral as they are amoral. It's not that they take pleasure in causing so much death and suffering. It's that they just don't care ... the same that could be said about a sociopath. As long as the death and suffering advance the agenda of the empire, as long as the right people and the right corporations gain wealth and power and privilege and prestige, as long as the death and suffering aren't happening to them or people close to them ... then they just don't care about it happening to other people, including the American soldiers whom they throw into wars and who come home-the ones who make it back alive-with Agent Orange or Gulf War Syndrome eating away at their bodies. American leaders would not be in the positions they hold if they were bothered by such things."  Killing Hope by William Blum