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

Legal risks mount for OpenAI OpenAI faces mounting legal risks stemming from cyber incidents linked to its AI models, after the firm alerted more than 100 organizations to unauthorized activities. — Eleanor Mueller, semafor.com, 5 Oct. 2026

The case involved a popular Japanese anime voice actor who demanded that TikTok close an account over its unauthorized use of an AI clone of his trademark baritone. — ABC News, 5 Oct. 2026

OpenAI reported that the agents used unauthorized communication channels, exploited vulnerabilities and engaged in reward hacking. — Babajide Ojuola, Forbes.com, 5 Oct. 2026

These sports businesses have alleged that counterfeit and unauthorized goods are sold through Temu, AliExpress, and similar online marketplaces. — Michael McCann, Sportico.com, 5 Oct. 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