anxiety that results from simultaneously holding contradictory or otherwise incompatible attitudes, beliefs, or the like, as when one likes a person but disapproves strongly of one of his or her habits.
Origin of cognitive dissonance
First recorded in 1960–65
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British Dictionary definitions for cognitive dissonance
psychol an uncomfortable mental state resulting from conflicting cognitions; usually resolved by changing some of the cognitions
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