derange
C1/C2Formal, Literary, Medical/Psychological
Definition
Meaning
to disturb the normal or regular arrangement, functioning, or mental state of someone or something.
To throw into a state of disorder, confusion, or mental instability; to disrupt or disorganize completely. In specific contexts, it can mean to cause insanity.
Linguistics
Semantic Notes
Carries a strong, often serious connotation. When applied to people, it typically implies severe mental disturbance, not just mild upset. When applied to systems, plans, or objects, it implies a fundamental disruption.
Dialectal Variation
British vs American Usage
Differences
Usage is largely identical. The adjective form 'deranged' is more commonly used in both varieties than the verb 'derange'.
Connotations
Identical in core meaning. The term may be slightly more established in UK legal/medical historical contexts (e.g., 'of unsound mind'), but this distinction is minimal.
Frequency
Low frequency in both dialects. The verb is rare in everyday speech; the adjective 'deranged' is encountered more often.
Vocabulary
Collocations
Grammar
Valency Patterns
[Subject: agent/cause] + derange + [Object: person/system]Vocabulary
Synonyms
Strong
Neutral
Weak
Vocabulary
Antonyms
Phrases
Idioms & Phrases
- “derange the senses”
- “derange the mental faculties”
Usage
Context Usage
Business
Virtually never used. 'Disrupt' is the standard term.
Academic
Used in historical, literary, or philosophical texts discussing mental states or societal order. Rare in modern scientific prose except as a historical reference.
Everyday
Extremely rare. If used, typically in the adjective form 'deranged' to describe extreme, often violent, irrational behaviour.
Technical
Primarily found in older psychiatric/legal terminology (e.g., 'a deranged person'). Largely superseded by more specific clinical terms like 'psychotic' or 'having a psychotic disorder'.
Examples
By Part of Speech
verb
British English
- The traumatic events were enough to derange even the strongest mind.
- Do not derange the papers on my desk; they are in a precise order.
- The invasion served to derange the entire political system of the region.
- The constant pain began to derange his sense of reality.
American English
- The fever was so high it threatened to derange his mental faculties.
- Please don't derange the files; they're organized alphabetically.
- The sudden economic shock deranged the carefully laid plans of the corporation.
- Witnessing the accident completely deranged her for a time.
adverb
British English
- (Extremely rare, almost non-standard) He stared derangedly at the wall.
- (Not used)
American English
- (Extremely rare, almost non-standard) She laughed derangedly at the terrible news.
- (Not used)
adjective
British English
- The police described the attacker as clearly deranged.
- He was committed after being found to be of deranged mind.
- A deranged individual was shouting obscenities in the market.
American English
- The tabloids labeled the celebrity's behaviour as deranged.
- The court heard testimony from a deranged witness.
- It was the act of a deranged killer, not a calculated crime.
Examples
By CEFR Level
- The news was so shocking it almost deranged him.
- A deranged man was causing trouble in the town square.
- The constant pressure of the job threatened to derange her orderly mind.
- The historian argued that the war had deranged the nation's social fabric for a generation.
- He was diagnosed as mentally deranged and unfit to stand trial.
- The philosopher contended that absolute solitude could derange the human psyche.
- The deranged mechanism of the clock whirred uselessly, its gears misaligned.
- Her meticulously planned schedule was utterly deranged by the unforeseen transportation strike.
Learning
Memory Aids
Mnemonic
Think: DE-RANGE. To take something out of its normal RANGE or order, sending it into chaos.
Conceptual Metaphor
ORDER IS SANITY / DISORDER IS INSANITY. To derange is to impose a state of damaging disorder, often mapped onto the mind.
Watch out
Common Pitfalls
Translation Traps (for Russian speakers)
- False friend with Russian 'derжать' (to hold). No relation.
- Do not confuse with 'arrange'. 'Derange' is the opposite.
- The adjective 'deranged' is much more common than the verb.
Common Mistakes
- Using it for minor annoyances (e.g., 'The noise deranged me' is too strong). Use 'irritated' or 'distracted'.
- Overusing the verb form; 'deranged' as an adjective is more natural.
- Confusing it with 'disturb'. 'Derange' implies a more profound, systemic disruption.
Practice
Quiz
In which of the following sentences is the word 'derange' used MOST appropriately?
FAQ
Frequently Asked Questions
No, the verb 'derange' is quite rare in everyday speech. The adjective 'deranged' is more frequently encountered, especially in news reports or dramatic descriptions of irrational behaviour.
It can be used for both. While its most potent use is for mental states (to derange someone's mind), it can also formally describe throwing any system, order, or mechanism into disorder (e.g., to derange plans, a deranged mechanism).
'Disturb' is broader and milder. It can mean to interrupt, bother, or cause mild anxiety. 'Derange' is much stronger and implies causing serious disorder, confusion, or mental instability. You might be disturbed by a noise, but a horrific event might derange you.
It's grammatically possible but stylistically weak. 'Deranged' already implies a severe state. More natural collocations use adverbs like 'completely', 'totally', 'seriously', or 'dangerously deranged'.
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