The meaning of UNAUTHORIZED is not authorized : without authority or permission. How to use unauthorized in a sentence.

UNAUTHORIZED definition: 1. without someone's official permission to do something or be in a particular place: 2. without…. Learn more.

If something is unauthorized, it has been produced or is happening without official permission. ...a new unauthorized biography of the Russian President. ...the unauthorized use of a military vehicle. It has …

unauthorized, unauthorised (anˈoːθəraizd) adjective not having the permission of the people in authority. unauthorized use of the firm's equipment. no autorizado Kernerman English Multilingual Dictionary © …

Definition of unauthorized adjective in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

unauthorised Add to list Definitions of unauthorised adjective not endowed with authority synonyms: unauthorized

Dec 27, 2025 · Unauthorised or unauthorized—both are correct! Learn the UK vs US spelling rule, meaning, and examples to avoid mistakes in writing.

Unauthorized and unauthorised are both English terms. Unauthorized is predominantly used in 🇺🇸 American (US) English (en-US) while unauthorised is predominantly used in 🇬🇧 British English (used in …

Jun 23, 2025 · unauthorised (comparative more unauthorised, superlative most unauthorised) (British spelling) Alternative spelling of unauthorized.

UNAUTHORIZED definition: lacking permission; unsanctioned. See examples of unauthorized used in a sentence.