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

In response, approximately 25% of developers now design APIs with agents as the primary end consumer rather than humans, and over half of them cite unauthorized agent access as a security concern. — Mia Osmonbekov, Fortune, 23 July 2026

The most common include detecting unauthorized, outdated, or off-brand content at scale and consistently producing hyper-personalized content. — Gary Drenik, Forbes.com, 23 July 2026

Curtis Park curbs were unauthorized Jensen filed a 311 request May 12 after seeing the gray paint, thinking a neighbor had covered the red markings. — Sacbee.com, 22 July 2026

However, Forbes has still been charged with misdemeanors, one count of prowling, two counts of unauthorized lodging, and one count of petty theft of personal property in connection with her arrest. — Noe Padilla, USA Today, 22 July 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