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

The Flagler Beach Police Department added charges of unauthorized installation of a tracking device and accessing an electronic device without authority. — Steven Yablonski, CBS News, 6 Aug. 2026

One of the latest incidents occurred in Clayton County, Georgia, where local officials disclosed that unauthorized cyber activity disrupted water service last month, according to CBS News. — Paloma Chavez, PEOPLE, 6 Aug. 2026

Levi, 33, founded the unauthorized Meitarim Farm outpost in the South Hebron Hills of the West Bank in 2021. — Kara Fox, CNN Money, 6 Aug. 2026

Buc-ee's claimed that the unauthorized use of its trademarks, including a smiling animal mascot, were benefitting the Missouri convenience store at Buc-ee's expense, while falsely informing consumers that the two businesses are related. — Gabe Hauari, USA Today, 4 Aug. 2026

Word History

First Known Use

1597, in the meaning defined above

Rhymes for unauthorized

• americanized
• anathematized
• collateralized
• contextualized
• conventionalized
• demilitarized
• demineralized
• departmentalized
• depersonalized
• industrialised
• industrialized
• materialised