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

These breaches could result in rule violations, service outages, or unauthorized access. —Felysha Walker, Miami Herald, 10 Apr. 2026

Knowing that any unauthorized demonstrations are harshly suppressed, activists have tried to organize authorized rallies, plastered posters on walls and notice boards, and filed lawsuits. —ABC News, 9 Apr. 2026

Registration on the Principal Register provides nationwide constructive notice, a legal presumption of ownership, and the right to use the ® symbol — tools that matter when knockoffs and unauthorized merchandise inevitably appear. —Pj Green april 8, Kansas City Star, 8 Apr. 2026

This granted local police the right to assist immigration officials in arresting and detaining unauthorized immigrants. —Menika Dirkson, The Conversation, 8 Apr. 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