unauthorized

adjective

un·​au·​tho·​rized ˌən-ˈȯ-thə-ˌrīzd How to pronounce unauthorized (audio)
: not authorized : without authority or permission
an unauthorized biography
unauthorized communications
was unauthorized to act for her husband

Examples of unauthorized in a Sentence

Recent Examples on the Web
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.
Continuous monitoring is necessary, especially for detecting unauthorized API calls or user access, anomalous data flows or excessive account privileges. Amir Khayat, Forbes.com, 5 Aug. 2025 Successful advocacy emphasized unauthorized immigrants as integral community members — neighbors, coworkers and taxpayers — whose presence benefits all Americans. Chinyere Osuji, Baltimore Sun, 5 Aug. 2025 North American Aerospace Defense Command fighter aircraft intercepted a civilian aircraft violating temporary flight restrictions over Bedminster, New Jersey, on Sunday, marking the fifth unauthorized incursion this weekend. Asher Notheis, The Washington Examiner, 3 Aug. 2025 From 2002 to 2016, hundreds of thousands of Wells Fargo’s Community Bank employees opened millions of unauthorized or fraudulent accounts and other financial products to meet excessive sales goals. Catherine Muccigrosso july 31, Charlotte Observer, 31 July 2025 See All Example Sentences for unauthorized

Word History

First Known Use

1597, in the meaning defined above

Time Traveler
The first known use of unauthorized was in 1597

Browse Nearby Words

Cite this Entry

“Unauthorized.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/unauthorized. Accessed 19 Aug. 2025.

More from Merriam-Webster on unauthorized

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!