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Synonyms

misuse

American  
[mis-yoos, mis-yooz] / mɪsˈyus, mɪsˈyuz /

noun

  1. wrong or improper use; misapplication.

    Synonyms:
    misappropriation, misemployment
  2. Obsolete. bad or abusive treatment.


verb (used with object)

misused, misusing
  1. to use wrongly or improperly; misapply.

  2. to treat badly or abusively; maltreat.

misuse British  

noun

  1. erroneous, improper, or unorthodox use

    misuse of words

  2. cruel or inhumane treatment

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

verb

  1. to use wrongly

  2. to treat badly or harshly

  3. to use (something, esp alcohol, drugs, etc) improperly

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of misuse

Middle English word dating back to 1350–1400; see origin at mis- 1, use

Explanation

Misuse is using something incorrectly or in a harmful way. I warned you that repeated misuse of your cellphone would break it — I can't believe you were texting in the shower! You can use this word as a noun or a verb, with just a slight change in pronunciation. As a noun, misuse rhymes moose. But when you misuse the money your parents gave you for groceries, spending it all on candy and comic books, misuse rhymes with confuse. A less-common meaning of the verb is "treat someone badly."

Keep Reading on Vocabulary.com

Vocabulary lists containing misuse

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Her resignation shifts attention to Republican Cory Mills, who remains under investigation over allegations including sexual misconduct, campaign finance violations and misuse of his office, all of which he denies.

From Barron's • Apr. 21, 2026

A law firm that collapsed suddenly is being investigated over a "sophisticated suspected fraud" involving the "improper removal and misuse" of £39.5m of client funds, a regulator has said.

From BBC • Apr. 21, 2026

It offers new measures against illicit finance and new authorities to address misuse.

From The Wall Street Journal • Apr. 8, 2026

Many homes “inappropriately diagnosed residents with schizophrenia to mask the nursing homes’ misuse of antipsychotic drugs and to artificially inflate their star ratings,” it adds.

From MarketWatch • Apr. 7, 2026

She had not had the advantage of a rigid Cambridge education only to be so foolish as to misuse it.

From "Double Helix" by James D. Watson