unauthorised

Everyday

1. Unauthorised means done or used without permission from the person or group in charge. tree →
2. An unauthorised person is someone who is not allowed to be somewhere or to do something. tree →

In the lessons

In everyday and safety life it appears on signs: «No unauthorised entry», «Unauthorised vehicles will be removed». In school, an unauthorised absence means missing school without a reason the school accepts. In online safety it means using an account or computer without permission, which can be against the law. Phrases: unauthorised access, unauthorised absence, unauthorised use.

Examples

• The sign said «No unauthorised persons beyond this point.» tree →
• Missing school for a holiday is an unauthorised absence. tree →
• Unauthorised access to someone's account is against the law. tree →
• The guard stopped an unauthorised visitor at the gate. tree →
• Unauthorised parking will be fined. tree →
• The app sent a warning about an unauthorised login. tree →
• Using photos from the internet without permission can be unauthorised use. tree →

Note

UK spelling unauthorised, US spelling unauthorized. «Un-» means «not». Opposite: authorised (allowed).