- The definition of an assailant is a person who attacks and harms another physically or verbally.
A mugger is an example of an assailant.
assailant definition by Webster's New World
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
one who assails or attacks; attacker
Origin: ; from French
assailant definition by American Heritage Dictionary
A person who attacks another.