They remain just two points above the drop zone after the 2-0 defeat at Selhurst Park.
"We had them under a little bit of pressure before that first goal so we'll take a lot of positives from that," Jedinak said.
"We've just got to keep building. The word 'disappointment' comes to mind, but it was encouraging nonetheless.
"It was a defeat, but we let them off the hook a bit. We gave them a penalty through a challenge which was probably a rash decision at the time. Those things can happen in football."
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