the use of propaganda, threats, and other psychological techniques to mislead, intimidate, demoralize, or otherwise influence the thinking or behavior of an opponent.
World War IRead more in this article about some frequently asked questions and fun facts related to our definitions.
Origin of psychological warfare
First recorded in 1935–40
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for psychological warfare
It was beginning to look as though the psychological-warfare experiment might show another, unexpected, success.Oomphel in the Sky|Henry Beam Piper
British Dictionary definitions for psychological warfare
the military application of psychology, esp to propaganda and attempts to influence the morale of enemy and friendly groups in time of war
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012