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Definition of derangement

derangement

/dɪˈreɪndʒmənt/
de · range · ment
Plural:derangements
•
Adjective:deranged
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derangement Lexical Profile

derangement Game Scores & Validity

• noun

1

A state of severe mental disturbance, irrationality, or madness.

Example

"The tragic play portrays the gradual mental derangement of the aging monarch after he divides his kingdom."

2

The state of being thrown into disorder, or a disruption in the normal arrangement or functioning of a system or organ.

Example

"Chronic sleep deprivation can cause a severe derangement of the body's metabolic and endocrine processes."

3

In combinatorics, a permutation of the elements of a set in which no element appears in its original position.

Example

"Calculating the number of possible derangements is a classic problem in probability theory, often illustrated by guests randomly picking up hats."

Synonyms
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Antonyms
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• Rhymes for derangement

• Nearby Words

derailment
derange
deranged
derangement
derby
derbyshire
deregister

Word Origin & Etymology

Borrowed in the mid-18th century from French 'dérangement', from the verb 'déranger' (to throw into disorder), formed from the prefix 'dé-' and 'ranger' (to set in a row or arrange).

Cite this Entry

Wordmom. (2026). Definition of Derangement. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/derangement
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