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 company has not publicly detailed exactly how the unauthorized access happened. — Kurt Knutsson, FOXNews.com, 2 July 2026

Regardless, Higgins, who runs a security firm, said unauthorized climbs pose immediate safety risks to both the climbers and people below if someone falls. — Eduardo Cuevas, USA Today, 2 July 2026

Investigators also caught the brothers with at least 15 counterfeit and unauthorized bank cards, prosecutors said. — Joe Marusak july 2, Charlotte Observer, 2 July 2026

Tuesday's Board meeting began with an admission by the sheriff's office that 140 unauthorized searches of the Flock license plate camera data occurred in the past year. — John Ramos, CBS News, 2 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