as in improper
without permission; not authorized
an unauthorized use of government vehicles Unauthorized personnel are not allowed in the building.
Synonyms & Similar Words
Relevance
Antonyms & Near Antonyms
Example Sentences
Examples are automatically compiled from online sources to
show current usage.
Read More
Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
Send us feedback.
Recent Examples of unauthorized
Alerting your service provider can stop unauthorized usage and prevent potential charges or identity theft via the SIM card.
—
Melissa Fleur Afshar, MSNBC Newsweek, 9 May 2025
The Department of Homeland Security is offering to pay $1,000 to unauthorized immigrants to self-deport.
—Elizabeth Robinson, NBC news, 6 May 2025
The Marin County Sheriff’s Office alleges Christopher Britton, of Fairfield, burglarized classrooms at several schools in February, making off with credit cards and running up thousands of dollars in unauthorized purchases.
—Andrew J. Campa, Los Angeles Times, 1 May 2025
By Christopher Elliot | Problem Solved Q: Someone made an unauthorized purchase of $1,365 using my PayPal email address.
—Christopher Elliott, King Features Syndicate, Mercury News, 30 Apr. 2025
See All Example Sentences for unauthorized
Melissa Fleur Afshar, MSNBC Newsweek, 9 May 2025
The Department of Homeland Security is offering to pay $1,000 to unauthorized immigrants to self-deport.
—Elizabeth Robinson, NBC news, 6 May 2025
The Marin County Sheriff’s Office alleges Christopher Britton, of Fairfield, burglarized classrooms at several schools in February, making off with credit cards and running up thousands of dollars in unauthorized purchases.
—Andrew J. Campa, Los Angeles Times, 1 May 2025
By Christopher Elliot | Problem Solved Q: Someone made an unauthorized purchase of $1,365 using my PayPal email address.
—Christopher Elliott, King Features Syndicate, Mercury News, 30 Apr. 2025
See All Example Sentences for unauthorized
Recent Examples of Synonyms for unauthorized
Adjective
-
Also check into the warranty and the return policy since improper care can void the warranty.—
Kathleen Felton,
Better Homes & Gardens,
9 May 2025
-
The restaurant was using improper procedures when using time as a public health control.—
Veronica Fernandez-Alvarado,
Sacbee.com,
9 May 2025
Adjective
-
Without effective safeguards in place, there are considerable risks to all businesses along alcohol supply chains of becoming implicated in illicit trading.—
Mark Littler,
Forbes.com,
16 May 2025
-
And, there's always the strong possibility of the emergence of new, even more potent synthetic opioids—just like when fentanyl entered the illicit drug supply over a decade ago and caused an unprecedented number of deaths.—
Jasmine Laws,
MSNBC Newsweek,
15 May 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
-
Two waste companies denied unlawful dumping, with one saying state law allows compostable material to be disposed on farmland and other properties for beneficial use.—
Susanne Rust,
Los Angeles Times,
11 May 2025
-
Doyle was charged with unlawful imprisonment in the second degree and assault in the third degree.—
Chris Young Ritzen,
CBS News,
10 May 2025
Adjective
-
Screenshot inappropriate gun marketing content and circulate it.—
Sarah Scott,
Parents,
9 May 2025
-
Originally a producer on the project, he was fired for cause after at least one incident of inappropriate behavior on Runner that included bullying and yelling at crew.—
Matt Grobar,
Deadline,
9 May 2025
Adjective
-
All these attacks are unacceptable, and this isn't just an American problem.—
Mandalit del Barco,
NPR,
13 May 2025
-
That should be unacceptable to American negotiators.—
Benjamin Weinthal,
FOXNews.com,
12 May 2025
Adjective
-
Nothing in the court’s opinion, however, required states to create voucher programs, much less implied that reserving public education funds for public schools was illegitimate.—
Derek W. Black,
The Conversation,
6 May 2025
-
Peters was found guilty in August on seven counts convicting her for assisting in facilitating unauthorized access to voting equipment after the 2020 election, aiming to bolster Trump’s claim the election results were illegitimate.—
Alex Gangitano,
The Hill,
6 May 2025
Cite this Entry
“Unauthorized.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/unauthorized. Accessed 21 May. 2025.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
Share