un·​au·​tho·​rized | \ ˌən-ˈȯ-thə-ˌrīzd How to pronounce unauthorized (audio) \

Definition of unauthorized

: 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 The agency has a broader focus on transnational crime, and agents arrest unauthorized immigrants and U.S. citizens alike. Maria Sacchetti And Nick Miroff, Anchorage Daily News, 29 Dec. 2021 The parliamentarian had previously made clear that no path to citizenship for unauthorized immigrants could be included in the expansive Build Back Better Act and passed through reconciliation. Lautaro Grinspan, ajc, 17 Dec. 2021 The flaw gives hackers a way of turning the log files that keep track of what users do on computer servers into malicious instructions that force the machine to download unauthorized software, giving them a beachhead on a victim’s network. Robert Mcmillan, WSJ, 11 Dec. 2021 The keyless entry system prevents an unauthorized person from gaining access to the vehicle because an encryption method of generating radio frequency (RF) is used to send authentication data. John Giordani, Forbes, 10 Dec. 2021 Later than month, Hybe in a statement threatened legal action against Bitget, accusing the exchange of using unauthorized band photos in its Army Coin promotions. Washington Post, 7 Dec. 2021 Ross was charged with unlawful handling of human remains, removal or possession of a memento from human remains and unauthorized entry into a dwelling, according to the Sonoma County district attorney’s office. Hayley Smith, Los Angeles Times, 7 Dec. 2021 In Orwell’s novel, news and information is transmitted on telescreens, which serve simultaneously as broadcasting and surveillance devices, and unauthorized books and writing pads are banished. John R. Macarthur, Harper’s Magazine , 7 Dec. 2021 Ivermectin and other unauthorized COVID treatments have become a major source of dispute in recent months. Matt Volz, Anchorage Daily News, 6 Dec. 2021

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'unauthorized.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of unauthorized

1597, in the meaning defined above

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Time Traveler

The first known use of unauthorized was in 1597

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Last Updated

12 Jan 2022

Cite this Entry

“Unauthorized.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/unauthorized. Accessed 16 Jan. 2022.

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English Language Learners Definition of unauthorized

: without permission : not authorized

More from Merriam-Webster on unauthorized

Thesaurus: All synonyms and antonyms for unauthorized

Nglish: Translation of unauthorized for Spanish Speakers


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