One point from their last 11 matches on the road tells its own story and United, seven points adrift of safety, now have just seven games to save their Championship status.
Adams said: "We have a soft underbelly away from home.
"We don't do the right things defensively and the three goals could have been avoided. We had half-chances, but you have to take them.
"We know the gap is there but we have to be positive and believe we can do it. We are reliant on other teams slipping up but we have to concentrate on the things we can affect."