And the centre-back admits it was the manner of Newcastle's performance against Arsenal that disappointed both Pardew and the players themselves.
“I don’t think it was about our energy levels or our character," Williamson told the Newcastle Evening Chronicle. "It was about the quality. Individually and collectively, we didn’t reach the standards we did last week. That was the frustrating part.
“The manager said after the game that you can’t expect to turn up and put a display on like we did and expect to win.
“It was a hard one to take. It’s a tough place to come and we felt we didn’t perform to the level we did last week against Chelsea.
“That was the frustrating part for us. Arsenal are a fantastic team and fantastic individuals regardless of what XI they put out.“It was a difficult night for us.”