One who is affected with a personality disorder marked by antisocial behavior.(noun)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "sociopath" in a sentence
"I use the term sociopath, because I want people to understand that we're talking not only about people who can be quite violent, but also about people who are not and never will be violent."
"Some have used the word "sociopath" to describe her, but the term loses some of its meaning in Rihannsu culture, where one is expected to reach out one's hand and take what one wants … as the Travelers did."
"I'm not sure you understand what a "sociopath" is ..."