brittlewall
nounUK /ˈbrɪtəlwɔːl/
US /ˈbrɪtəlwɔːl/
A brittlewall is a wall that breaks easily.
The old castle had a brittlewall that crumbled when the ball hit it.
OTHER MEANINGS
2. A person who seems strong but gives way under pressure.
He was a brittlewall, smiling at work but falling apart at home.
3. A computer security barrier that fails under stress.
The firewall turned out to be a brittlewall and let the virus through.
4. A temporary barrier that is easy to knock down.
The kids built a brittlewall of cardboard boxes for their game.