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Synonyms

unauthorized

American  
[uhn-aw-thuh-rahyzd] / ʌnˈɔ θəˌraɪzd /

adjective

  1. lacking permission; unsanctioned.

    unauthorized access.

  2. lacking proper immigration or working papers: an unauthorized immigrant.

    an unauthorized worker;

    an unauthorized immigrant.


unauthorized British  
/ ʌnˈɔːθəˌraɪzd /

adjective

  1. not having official permission

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Sensitive Note

See illegal alien.

Etymology

Origin of unauthorized

First recorded in 1595–1600; un- 1 ( def. ) + authorized ( def. )

Explanation

If something is officially not approved, it's unauthorized. An unauthorized biography is written without the consent or cooperation of its subject. If a person lacks the authority to do something, you can describe them as unauthorized: "Sorry, I'm unauthorized to let you into the secret clubhouse." Otherwise, this adjective means "not permitted." Many unauthorized things are also illegal, like an online company's unauthorized use of personal information. To authorize is to give approval.

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Vocabulary lists containing unauthorized

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Patrick Grandy, assistant director in charge of the FBI’s Los Angeles office, briefed federal officials about the agency’s “security footprint” including measures against unauthorized drone flights.

From Los Angeles Times • Jun. 14, 2026

Training for local and state police on countering unauthorized drone activity at the World Cup was part of a $500 million federal grant amid this growing threat to sporting events.

From Barron's • Jun. 11, 2026

It stops law enforcement agents, including federal agents, from “providing unauthorized access, disruption, modification, or seizure of voter rolls, voter lists, or certified voting technology,” without a court order.

From Los Angeles Times • Jun. 2, 2026

In contrast, technology stocks dragged on China’s benchmark Shanghai Composite-down 0.3%—after China’s State Council said the government would prohibit the unauthorized export of state-restricted goods, technology, services and data.

From The Wall Street Journal • Jun. 1, 2026

Tea Cake’s house was a magnet, the unauthorized center of the “job.”

From "Their Eyes Were Watching God" by Zora Neale Hurston

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