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delusion

noun

Simple meaning

An erroneous belief that is held in the face of evidence to the contrary.

Pronunciation

Say it like this:

dihloozhuhn

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US device voice
IPA pronunciation (US)

dɪˈluʒən

This word is pronounced essentially the same in American and British English, so one transcription covers both.

IPA (International Phonetic Alphabet) is a standard way of writing speech sounds.

Word Review

Definition

Everyday modern meanings first, grouped by part of speech.

noun

  1. A false belief that is resistant to confrontation with actual facts.

  2. A fixed, false belief, that will not change, despite evidence to the contrary.

  3. That which is falsely or delusively believed or propagated; false belief; error in belief.

  4. psychology

    An erroneous belief that is held in the face of evidence to the contrary

    “Despite clear evidence otherwise, his delusion that strangers controlled his thoughts persisted.”

  5. The act of deluding; deception by creating illusory ideas

  6. The state of being deluded or misled, or process of deluding somebody.

Word at a Glance

Frequency
Uncommon
Formality
Technical

Word Aura™

How this word commonly comes across.

Aura for this meaning

This meaning: A false belief that is resistant to confrontation with actual facts.

Used this way, delusion is a reasonably familiar word that usually carries little praise or criticism of its own. It usually sounds natural in a wide range of settings.

Emotional tone
Neutral
Formality
Neutral
Intensity
Not strongly marked
How common
Moderately common
Connotation
Matter-of-fact
Usage feel
Neutral and straightforward

Word Aura describes common impressions, not a measurement. Tone changes with sentence, speaker, relationship and situation.

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Common Patterns and Combinations

How this word naturally appears with others.

popular delusionstrong delusionmere delusioninsane delusiongreat delusionwitchcraft delusionstrange delusion

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Word Family

Related forms, grouped by how they connect.

Compound terms

Established multiword terms.

  • delusions of grandeurnounCompound term

    A delusion (common in paranoia) that you are much greater and more powerful and influential than you really are.

  • delusions of persecutionnounCompound term

    A delusion (common in paranoia) that others are out to get you and frustrate and embarrass you or inflict suffering on you.

  • nihilistic delusionnounCompound term

    The delusion that things (or everything, including the self) do not exist.

  • somatic delusionnounCompound term

    A delusion concerning the body image or parts of the body.

Related words

Connected by subject or meaning, not by word formation.

  • delusional disordernounRelated term

    Any mental disorder in which delusions play a significant role.

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Dictionary data from Wiktionary via the Free Dictionary API. Simple meanings, combinations and word intelligence are built from verified reference data, no AI is used to load this page.