reject something out of hand
dismiss something out of hand

But the congress did not dismiss the offer out of hand.

Some were dismissed out of hand, for being too poor, or not the right sort.

Unfortunately for her, she had been dismissed out of hand.

If they had kept on with the story, I'd have probably dismissed it out of hand.

"I'm simply saying you should not dismiss the idea out of hand."

But they did not dismiss it out of hand, as in years past.

No, I'm not one for simply dismissing such things out of hand.

Put that way, it could not be dismissed out of hand.

Others, however, cannot be dismissed out of hand and I would like to share my concerns with you.

It was wrong to dismiss his effort out of hand.