A contradiction in related terms or ideas. Usually an inconsistency in syllogisms, of a person or group supposedly of one set of ideals.
That which is falsely or delusively believed or propagated; false belief; error in belief.
A false belief that is resistant to confrontation with actual facts.
A fixed, false belief, that will not change, despite evidence to the contrary.
The state of being deluded or misled, or process of deluding somebody.