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

Replace or block the card if needed If the charge is unauthorized, the issuer can cancel the card and issue a replacement to stop further transactions. —Kurt Knutsson, FOXNews.com, 28 Mar. 2026

An antivirus will prevent unauthorized apps and malware from compromising your system. —Justyn Newman, PC Magazine, 27 Mar. 2026

Lipps was arrested in mid-July at her home after the Cass County State’s Attorney’s Office charged her with North Dakota felony counts of theft and unauthorized use of personal identifying information. —April Baumgarten, Twin Cities, 26 Mar. 2026

The central bank originally imposed the limitations due to governance and control issues at Wells, including employees opening millions of unauthorized accounts to meet work-performance quotas. —Liz Napolitano, CNBC, 26 Mar. 2026

Word History

First Known Use

1597, in the meaning defined above

Rhymes for unauthorized

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