self-delusion: meaning, definition, pronunciation and examples
C1Formal, Academic, Psychological
Quick answer
What does “self-delusion” mean?
The act or state of deceiving oneself, of believing something that is not true because one wishes it to be true.
Audio
Pronunciation
Definition
Meaning and Definition
The act or state of deceiving oneself, of believing something that is not true because one wishes it to be true.
A systematic, often unconscious, pattern of maintaining false beliefs about oneself, one's abilities, or one's situation, typically to avoid psychological discomfort or to preserve self-esteem. It can range from minor wishful thinking to profound psychological denial.
Dialectal Variation
British vs American Usage
Differences
No significant lexical differences. The hyphenated form 'self-delusion' is standard in both varieties, though 'self delusion' (open) is occasionally seen in informal contexts.
Connotations
Slightly more clinical or literary in British usage; slightly more commonly used in pop-psychology contexts in American English.
Frequency
Moderately low frequency in both, but more common in psychological, philosophical, and self-help discourse.
Grammar
How to Use “self-delusion” in a Sentence
[subject] is/are in a state of self-delusion about [object][subject] suffers from self-delusion that [clause][subject]'s self-delusion about [object] led to [consequence]Vocabulary
Collocations
Examples
Examples of “self-delusion” in a Sentence
verb
British English
- He is self-deluding about his prospects.
- Stop self-deluding and face the facts.
American English
- She's just self-deluding at this point.
- You can't self-delude forever.
adverb
British English
- He walked, self-deludingly, towards certain failure.
- (Rarely used; 'self-deceptively' is more common.)
American English
- She self-deludingly believed she could win.
- (Rarely used.)
adjective
British English
- His self-deluding behaviour was evident to all.
- A self-deluded state of mind.
American English
- That's a self-deluding argument.
- A self-deluded politician.
Usage
Meaning in Context
Business
Used to critique unrealistic strategic planning or overconfidence in leadership, e.g., 'The board's self-delusion about market dominance led to catastrophic over-investment.'
Academic
Common in psychology, philosophy, and political science to analyse cognitive biases and motivated reasoning.
Everyday
Used critically to describe someone who refuses to face an obvious truth about themselves, e.g., 'His self-delusion about his singing talent is painful to watch.'
Technical
In clinical psychology, a descriptive term for a pathological defense mechanism, though not a formal DSM diagnosis.
Vocabulary
Synonyms of “self-delusion”
Neutral
Vocabulary
Antonyms of “self-delusion”
Watch out
Common Mistakes When Using “self-delusion”
- Confusing 'self-delusion' with 'delusion' (the latter can be imposed by illness, the former is self-generated).
- Using it to describe a simple mistake rather than a persistent, motivated false belief.
- Misspelling as 'self-delussion'.
FAQ
Frequently Asked Questions
No, it is not a classified mental illness in itself (like schizophrenia). It is a psychological phenomenon or defense mechanism that can range from common everyday bias to a symptom of a personality disorder or other condition.
'Denial' is a broader defense mechanism of refusing to acknowledge a painful reality. 'Self-delusion' is often a specific *product* or *form* of denial, where the person not only denies reality but actively constructs and believes in a more palatable alternative.
While typically viewed negatively as a failure of realism, some philosophers and psychologists argue that mild, positive self-delusions (e.g., an optimistic overestimation of one's abilities) can enhance motivation and resilience, though this is a contentious view.
It is very difficult. Direct confrontation often leads to stronger entrenchment. Approaches like motivational interviewing, which gently highlight inconsistencies without judgment, or facilitating experiences that provide gentle, undeniable contrary evidence, are often recommended in therapeutic contexts.
The act or state of deceiving oneself, of believing something that is not true because one wishes it to be true.
Self-delusion is usually formal, academic, psychological in register.
Self-delusion: in British English it is pronounced /ˌself dɪˈluːʒ(ə)n/, and in American English it is pronounced /ˌself dɪˈluːʒ(ə)n/. Tap the audio buttons above to hear it.
Phrases
Idioms & Phrases
- “Living in a fool's paradise”
- “Drinking one's own Kool-Aid”
- “Building castles in the air”
Learning
Memory Aids
Mnemonic
Imagine the word 'illusion' with a mirror in front of it. Self-delusion is creating an illusion for yourself, in the mirror of your own mind.
Conceptual Metaphor
SELF-DELUSION IS A COMFORTABLE PRISON / SELF-DELUSION IS SMOKE AND MIRRORS FOR THE SELF
Practice
Quiz
Which of the following scenarios BEST illustrates 'self-delusion'?