unauthorized

adjective

un·​au·​tho·​rized ˌən-ˈȯ-thə-ˌrīzd How to pronounce unauthorized (audio)
Synonyms of unauthorizednext
: 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.
This adds an extra layer of reliability by preventing accidental disconnections or unauthorized removal. Mark Sparrow, Forbes.com, 23 May 2026 The mango- and blueberry-flavored products were finally OK’d during Makary’s last full week heading the FDA, just days before the agency posted the new guidelines allowing unauthorized nicotine products. Matthew Perrone, Fortune, 23 May 2026 Peters, 70, was convicted on multiple criminal counts, four of them felonies, for conspiring to let an unauthorized person access supposedly compromised voting equipment. Los Angeles Times, 20 May 2026 She was sentenced — correctly — for interfering in an election in her county and for allowing unauthorized access to the voting equipment, not for expressing her personal opinion. Dp Opinion, Denver Post, 20 May 2026 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 27 May. 2026.

More from Merriam-Webster on unauthorized

Love words? Need even more definitions?

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

More from Merriam-Webster