idiosyncrasy
C1formal
Definition
Meaning
A mode of behaviour or way of thought peculiar to an individual.
A distinctive or peculiar feature or characteristic of a place, thing, or system; an unusual or abnormal physiological reaction by an individual to a food, drug, etc. (medical, dated).
Linguistics
Semantic Notes
Typically used to describe peculiarities that are minor, harmless, and characteristic of a person, group, or institution. Often carries a neutral or slightly endearing connotation, not usually for major flaws.
Dialectal Variation
British vs American Usage
Differences
No significant spelling or meaning differences.
Connotations
Similar connotations in both dialects.
Frequency
Slightly more frequent in British academic/journalistic writing, but common in formal registers in both dialects.
Vocabulary
Collocations
Grammar
Valency Patterns
idiosyncrasy of [person/institution]idiosyncrasy in [behavior/method]have an idiosyncrasyVocabulary
Synonyms
Strong
Neutral
Weak
Vocabulary
Antonyms
Phrases
Idioms & Phrases
- “An idiosyncrasy of the house”
- “To have one's little idiosyncrasies”
Usage
Context Usage
Business
Used to describe unusual but established practices within a company or industry.
Academic
Common in psychology, sociology, and linguistics to describe individual or cultural peculiarities.
Everyday
Used to describe a person's harmless quirky habits.
Technical
In medicine, an abnormal individual reaction to a drug or agent (now often replaced by 'idiosyncratic reaction').
Examples
By Part of Speech
adverb
British English
- He writes idiosyncratically, refusing to follow standard conventions.
American English
- The software behaves idiosyncratically under certain conditions.
adjective
British English
- His idiosyncratic approach to management often puzzles his colleagues.
American English
- The director's idiosyncratic style is instantly recognizable.
Examples
By CEFR Level
- One of his little idiosyncrasies is that he always wears odd socks.
- The author's literary idiosyncrasies, such as his avoidance of commas, can be challenging for new readers.
- The voting system, an idiosyncrasy of the nation's political heritage, often leads to coalition governments.
Learning
Memory Aids
Mnemonic
Think 'IDIO' as in 'idiot' (a foolish person often acts in their own peculiar way) + 'SYNC' (in sync with oneself) + 'CRASY' (like crazy) = a peculiar, self-synchronised 'crazy' habit.
Conceptual Metaphor
A PERSONAL SIGNATURE (a unique mark identifying the individual).
Watch out
Common Pitfalls
Translation Traps (for Russian speakers)
- Avoid direct translation to 'идиосинкразия', which in Russian is almost exclusively a medical/biological term for allergy. In English, it is primarily a behavioural/cultural term.
Common Mistakes
- Misspelling as 'idiosynchracy' or 'idiosincrasy'.
- Using it to describe a major character flaw (too strong).
- Using plural 'idiosyncracies' (correct plural is 'idiosyncrasies').
Practice
Quiz
In which context is 'idiosyncrasy' LEAST appropriate?
FAQ
Frequently Asked Questions
Not necessarily. It is neutral, often describing harmless or even charming peculiarities. Context determines connotation.
A habit is a regular practice, not necessarily peculiar. An idiosyncrasy is a habit or characteristic that is distinctive or peculiar to that individual.
Yes, it can refer to a distinctive feature of a group, institution, or system (e.g., 'an idiosyncrasy of British law').
The adjective is 'idiosyncratic'.
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