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Definition of derange
derange
/dɪˈreɪndʒ/
de · range
Adjective:deranged
•Past Simple:deranged
•Past Participle:deranged
•Present Participle:deranging
derange Lexical Profile
CEFR
C1
Grade
11
Tier
2
Usage
Rare
Syllables
2
derange Game Scores & Validity
Scrabble US
Scrabble UK
WWF
Wordle Guess
• verb
1
To cause someone to become mentally unstable or unable to think clearly.
Example
"Prolonged isolation and extreme stress can severely derange the human mind."
2
To throw a system, arrangement, or normal process into disorder or confusion.
Example
"The sudden power outage threatened to derange the entire railway schedule for the afternoon."
Synonyms
View all synonyms for derange Antonyms
View all antonyms for derange• Rhymes for derange
• Nearby Words
Word Origin & Etymology
Borrowed in the late 18th century from French déranger ('to disorder' or 'to disturb'), formed from Old French desrengier, combining des- ('undo') and rengier ('to range' or 'put in a row').
Cite this Entry
Wordmom. (2026). Definition of Derange. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/derange