as in improper
without permission; not authorized
an unauthorized use of government vehicles Unauthorized personnel are not allowed in the building.
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Recent Examples of unauthorized
The two vessels were later released on bond for conducting unauthorized oil transfers.
—
ABC News, 13 May 2026
She was charged with two counts each of grand theft and unauthorized use of personal identifying information, along with one count each of first-degree residential burglary and first-degree residential burglary with a person present, according to the District Attorney’s Office.
—City News Service, Daily News, 13 May 2026
The company said the unauthorized actor made changes to pages that appeared when some students and teachers were logged in through Canvas.
—Kurt Knutsson, FOXNews.com, 11 May 2026
Thus, removing and transporting a whale’s head without a permit could fall under prohibitions on unauthorized possession and transport.
—Sam Zeveloff, STAT, 9 May 2026
See All Example Sentences for unauthorized
ABC News, 13 May 2026
She was charged with two counts each of grand theft and unauthorized use of personal identifying information, along with one count each of first-degree residential burglary and first-degree residential burglary with a person present, according to the District Attorney’s Office.
—City News Service, Daily News, 13 May 2026
The company said the unauthorized actor made changes to pages that appeared when some students and teachers were logged in through Canvas.
—Kurt Knutsson, FOXNews.com, 11 May 2026
Thus, removing and transporting a whale’s head without a permit could fall under prohibitions on unauthorized possession and transport.
—Sam Zeveloff, STAT, 9 May 2026
See All Example Sentences for unauthorized
Recent Examples of Synonyms for unauthorized
Adjective
-
Murdaugh’s attorneys appealed the murder convictions, saying the trial was tainted by the county clerk’s improper comments to jurors, prejudicial evidence and failures at trial.—
Ray Sanchez,
CNN Money,
15 May 2026
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How to Wash Sweat-Wicking Shirts These fabrics are designed to pull moisture away from the body, but improper washing can cause buildup, trapping bacteria and odors.—
Katie Cloyd,
Martha Stewart,
15 May 2026
Adjective
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And while the medical community rejected the compounds, today’s illicit drug manufacturers have revived nitazenes in a far more concentrated and hazardous form.—
Josh Meyer,
USA Today,
14 May 2026
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Reporters crowded around Scott, asking him about Becerra and whether the candidate knew about the illicit arrangement.—
Dakota Smith,
Los Angeles Times,
14 May 2026
Adjective
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Louisville police say anything that goes into the air or explodes is illegal for average citizens.—
James Bruggers,
The Courier-Journal,
5 July 2017
-
Official fireworks shows took place over the city, and illegal pyrotechnics lit up the sky everywhere in between.—
Lisa Beebe,
Los Angeles Magazine,
5 July 2017
Adjective
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The 27-year-old founder of a Sikh motorcycle club that prosecutors say was linked to the notorious Hells Angels has been sentenced for illegally dealing in firearms and unlawful possession of a machine gun.—
Marc Ramirez,
USA Today,
14 May 2026
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The Justice Department has repeatedly argued that the information sought in the subpoenas is needed to investigate possible fraud or unlawful off-label promotion of drugs.—
ABC News,
ABC News,
14 May 2026
Adjective
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South Carolina Attorney General Alan Wilson said at a news conference that Hill’s conduct was inappropriate but ultimately harmless.—
Abigail Brooks,
NBC news,
14 May 2026
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On April 12, former congressman Swalwell, 45, suspended his campaign for governor of California after multiple women accused him of inappropriate behavior ranging from sending lewd, unwanted messages to drugging, raping and choking them.—
Meredith Kile,
PEOPLE,
14 May 2026
Adjective
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For a city in the grip of a housing crisis, that delay was unacceptable.—
Michelle de la Uz,
New York Daily News,
13 May 2026
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Bans on unacceptable-risk AI have applied since February 2025, according to the European Commission.—
Chas Newkey-Burden,
TheWeek,
11 May 2026
Adjective
-
The nuns then took it upon themselves to make arrangements for the illegitimate child.—
Literary Hub,
Literary Hub,
8 May 2026
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The credit bureaus have said that many recent complaints are illegitimate, including a large volume filed by third-party credit repair organizations that charge customers to challenge negative information on their reports.—
Joel Jacobs,
ProPublica,
4 May 2026
Cite this Entry
“Unauthorized.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/unauthorized. Accessed 20 May. 2026.
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