Of, relating to, or characterized by psychopathy.(adjective)
Relating to or affected with an antisocial personality disorder.(adjective)
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 "psychopathic" in a sentence
"The study also showed increases in "psychopathic deviation," which is loosely related to psychopathic behavior in a much milder form and is defined as having trouble with authority and feeling as though the rules don't apply to you."
"He's a freakin psychopathic killer who will stop at nothing to take down Batman."
"And I would term psychopathic those Jews who ally themselves with those who are doing their best, through boycotts and other nefarious means to physically murder Jews - need I name names: Noam Chomsky, Adam Shapiro, Howard Zinn, Amy Goodman, etc."