Cognitive Dissonance
noun /ˈkɒɡnɪtɪv ˈdɪsənəns/ — The discomfort of holding two conflicting beliefs.
Definition
The mental discomfort experienced when a person holds two or more contradictory beliefs, values, or attitudes simultaneously.
Beyond the definition
The concept that explains so much human behavior — why people defend bad decisions, ignore inconvenient facts, or explain away their own contradictions. Understanding it is like getting a manual for how minds protect themselves.
Origin & history
Coined by psychologist Leon Festinger in 1957, from Latin cognitio (knowledge) + dissonantia (discord).
Example sentences
Illustrative sentences for learning, not verified community posts or sourced quotations.
The cognitive dissonance of eating a salad while planning a late-night pizza is relatable.
He experienced cognitive dissonance supporting policies that hurt people he loved.
Cognitive dissonance, not logic, is what drives most political behavior.
How to use it
This entry uses a noun. Follow the examples for articles and singular or plural forms; not every noun takes “a” or “an.”
Choose “Cognitive Dissonance” when the meaning fits your context: The mental discomfort experienced when a person holds two or more contradictory beliefs, values, or attitudes simultaneously.
Synonyms
internal conflict, contradiction, mental tension, double-think
Antonyms
consistency, congruence, alignment
Related words
- confirmation-bias
- rationalization
- paradox
Cognitive Dissonance vs hypocrisy
Cognitive dissonance is the internal psychological tension caused by holding two conflicting beliefs. Hypocrisy is the external behavior of professing standards or beliefs that one does not practice.
Word in the Wild
Illustrative story: an imagined scene, not a documented event or interview.
She was a committed environmentalist who flew to every climate conference. She knew the contradiction — had written about it, in fact. But the work felt too important to give up, and the travel felt too necessary to stop.
She held both positions simultaneously, which is exactly the thing — not hypocrisy, but the uncomfortable coexistence of beliefs that cannot both be fully true.
She still flies. She still writes about it. She has decided, provisionally, that carrying the contradiction openly is better than resolving it falsely.
Questions about this word
What does "Cognitive Dissonance" mean?
Cognitive Dissonance is noun meaning: The discomfort of holding two conflicting beliefs.. The mental discomfort experienced when a person holds two or more contradictory beliefs, values, or attitudes simultaneously.
Which words express “mixed feelings about something”?
Cognitive Dissonance — The discomfort of holding two conflicting beliefs.
Where does the word "Cognitive Dissonance" come from?
Coined by psychologist Leon Festinger in 1957, from Latin cognitio (knowledge) + dissonantia (discord).