Synonyms of the word

delusion

• n. A false belief that is resistant to confrontation with actual facts.
• n. The state of being deluded or misled.
• n. That which is falsely or delusively believed or propagated; false belief; error in belief.

deceit

• n. An act or practice intended to deceive; a trick.
• n. An act of deceiving someone.
• n. (uncountable) The state of being deceitful or deceptive.
• n. (law) The tort or fraudulent representation of a material fact made with knowledge of its falsity, or…

deception

• n. An instance of actions and/or schemes fabricated to mislead someone into believing a lie or inaccuracy.

dissembling

• n. The action of the verb dissemble.
• v. present participle of dissemble.

dissimulation

• n. The act of concealing the truth; hypocrisy or deception.
• n. Hiding one's feelings or intentions.

hallucination

• n. A sensory perception of something that does not exist, often arising from disorder of the nervous system,…
• n. The act of hallucinating; a wandering of the mind; an error, mistake or blunder.

illusion

• n. (countable) Anything that seems to be something that it is not.
• n. (countable) A misapprehension; a belief in something that is in fact not true.
• n. (countable) A magician’s trick.
• n. (uncountable) The state of being deceived or misled.

misconception

• n. a mistaken belief, a wrong idea.