In working out Aristotle’s view, it may help to keep in mind some of its rivals. We have a rich cultural gallery of competing candidates for the titles bad, vicious, evil, worst. There is the pursuer of disvalue as such, like Hannibal Lecter or Milton’s Satan; the wanton or brutish slave to low desires; the Dostoevskeian outlaw, committer of some unforgiveable crime; and the amoral egoist or sociopath who greets all moral considerations with a shrug.
Source: wiktionary