In the field of social psychology, the uncomfortable state of entertaining two contradictory ideas at the same time.
Example: Members of a religious cult decide that the world will end on a certain date. The day passes uneventfully, and group members come up with several defensive explanations for their incorrect prediction.
Grinnell, R. (2008). Cognitive Dissonance. Psych Central. Retrieved on April 19, 2015, from http://psychcentral.com/encyclopedia/2008/cognitive-dissonance/