unauthorized
word
Definition
When something is unauthorized, it is done without official permission or approval. It often describes actions, access, or activities that are not allowed by the rules or by someone in charge.
Usage & Nuances
Mainly formal and official contexts, especially in law, IT, and business. Common collocations: 'unauthorized access', 'unauthorized transaction', 'unauthorized use'. Distinct from 'illegal', which means against the law; 'unauthorized' may just break rules or policy, not necessarily the law.
Example Sentences
He made an unauthorized copy of the software.
basic
Access to the building after hours is unauthorized.
basic
The website blocked all unauthorized users.
basic
Her card was charged for an unauthorized purchase.
natural
If you notice any unauthorized changes to your account, contact support immediately.
natural
Sorry, that's an unauthorized area—staff only beyond this point.
natural