unauthorized
adjective
un·au·tho·rized
ˌən-ˈȯ-thə-ˌrīzd 
: 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
Section 1924, which prohibits the unauthorized removal and retention of classified documents.
—
Robert Alexander, MSNBC Newsweek, 24 Sep. 2025
Authorities emphasize that airport and airline security measures are crucial to preventing unauthorized access to aircraft.
—Sujita Sinha, Interesting Engineering, 23 Sep. 2025
In Tennessee, legislators passed and signed the Ensuring Likeness, Voice and Image Security Act of 2024 (ELVIS Act), which protects people’s likenesses from unauthorized use, particularly for commercial purposes.
—Meghan Hall, Sourcing Journal, 23 Sep. 2025
Cloud services protect your data using encryption, which makes information unreadable to unauthorized users.
—Roxanne Downer, USA Today, 23 Sep. 2025
See All Example Sentences for unauthorized
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Robert Alexander, MSNBC Newsweek, 24 Sep. 2025
Authorities emphasize that airport and airline security measures are crucial to preventing unauthorized access to aircraft.
—Sujita Sinha, Interesting Engineering, 23 Sep. 2025
In Tennessee, legislators passed and signed the Ensuring Likeness, Voice and Image Security Act of 2024 (ELVIS Act), which protects people’s likenesses from unauthorized use, particularly for commercial purposes.
—Meghan Hall, Sourcing Journal, 23 Sep. 2025
Cloud services protect your data using encryption, which makes information unreadable to unauthorized users.
—Roxanne Downer, USA Today, 23 Sep. 2025
See All Example Sentences for unauthorized
Cite this Entry
“Unauthorized.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/unauthorized. Accessed 29 Sep. 2025.
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