unusable

McCarthy believes bioenergy is one of those ways — essentially, by selling the least valuable, borderline unusable vegetation from the forest floor.

As a reporter and not an IT worker, I don't have high level access to BBC systems but it was still worrying and effectively meant my phone was unusable.

On 25 July, a classroom roof collapsed in Piplodi, killing seven children, injuring 21 others and leaving the village school unusable.

Reportedly, they were only allowed to be unshackled when using the bus toilet, which quickly became unusable.

The criminals also deployed malicious software called ransomware scrambling the company's IT networks making them unusable unless a ransom was paid.