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
This map shows Danish airports and military bases that have reported unauthorized drone activity.
—
Shane Croucher, MSNBC Newsweek, 25 Sep. 2025
Strong security prevents unauthorized access, keeps sensitive information safe and ensures smooth, reliable internet use for work, shopping and entertainment.
—Roxanne Downer, USA Today, 23 Sep. 2025
Authorities emphasize that airport and airline security measures are crucial to preventing unauthorized access to aircraft.
—Sujita Sinha, Interesting Engineering, 23 Sep. 2025
In Tennessee, legislators passed and signed the Ensuring Likeness, Voice and Image Security Act of 2024 (ELVIS Act), which protects people’s likenesses from unauthorized use, particularly for commercial purposes.
—Meghan Hall, Sourcing Journal, 23 Sep. 2025
See All Example Sentences for unauthorized
Shane Croucher, MSNBC Newsweek, 25 Sep. 2025
Strong security prevents unauthorized access, keeps sensitive information safe and ensures smooth, reliable internet use for work, shopping and entertainment.
—Roxanne Downer, USA Today, 23 Sep. 2025
Authorities emphasize that airport and airline security measures are crucial to preventing unauthorized access to aircraft.
—Sujita Sinha, Interesting Engineering, 23 Sep. 2025
In Tennessee, legislators passed and signed the Ensuring Likeness, Voice and Image Security Act of 2024 (ELVIS Act), which protects people’s likenesses from unauthorized use, particularly for commercial purposes.
—Meghan Hall, Sourcing Journal, 23 Sep. 2025
See All Example Sentences for unauthorized
Recent Examples of Synonyms for unauthorized
Adjective
-
Cucumbers can sometimes carry Salmonella, which may contaminate their skin or flesh during irrigation with unsafe water or through improper handling and distribution practices.—
Jillian Kubala,
Health,
29 Sep. 2025
-
The new order said the justices were not making a final determination, but the administration had made sufficient showing at this stage that the challenge brought by foreign assistance groups to Trump's spending freeze was improper.—
Maureen Groppe,
USA Today,
26 Sep. 2025
Adjective
-
Hanson garnered a reputation as a great team player, an all-around hustler, and someone with valuable connections to illicit drugs that would help players through pain.—
Barry Levitt,
Time,
26 Sep. 2025
-
The genre grew through messaging apps like Telegram and illicit networks like el paquete — the packet — a system where content is shared weekly via flash drives.—
Ana González Vilá,
Rolling Stone,
25 Sep. 2025
Adjective
-
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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African telecom companies are often at the mercy of government agencies that order the shutdowns, but pressure from the international community could increase accountability and compel the companies to deny unlawful or arbitrary shutdown orders, the researchers argued.—
Alexander Onukwue,
semafor.com,
29 Sep. 2025
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Oregon is calling for the court to declare Hegseth's order unlawful and to enjoin the federalization of troops, as well as permanently enjoin the defense secretary and the Pentagon from calling upon Oregon National Guard members for federal service.—
Peter Aitken,
MSNBC Newsweek,
28 Sep. 2025
Adjective
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The decision in Gardner’s favor could become a significant ruling for celebrities who use humor, exaggeration and sarcasm that some might find inappropriate when responding to strangers on social media platforms.—
Michael McCann,
Sportico.com,
25 Sep. 2025
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That Arthur, as the eldest, will inherit the brewery seems a bit inappropriate.—
Keith Phipps,
Vulture,
25 Sep. 2025
Adjective
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Afterwards, there were some situations that were completely unacceptable.—
Raechal Shewfelt,
Entertainment Weekly,
27 Sep. 2025
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This type of behavior is unacceptable and does not reflect the values of sportsmanship, respect, and integrity that Kalamazoo Public Schools expects from student-athletes, coaches, and the entire school community.—
Marni Rose McFall,
MSNBC Newsweek,
25 Sep. 2025
Adjective
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Also endangering the family name and business is a crooked deal made by Byron Hedges (Jack Gleeson), an illegitimate cousin helping Guinness expand into America, that promises 15% of all American profits to the Fenian Brotherhood.—
Lynsey Eidell,
PEOPLE,
27 Sep. 2025
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The play’s serious depiction of class politics and illegitimate birth were considered shocking by contemporary audiences.—
Emily Zarevich,
JSTOR Daily,
11 Sep. 2025
Cite this Entry
“Unauthorized.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/unauthorized. Accessed 3 Oct. 2025.
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