Crippling the workflow because you want to show off some gee-wiz UI shinies is unbelievably stupid.

"It's unbelievably stupid," he said, "but easy to do."

What an unbelievably stupid and shallow comment.

He looked at Maureen like that sometimes when he had a couple of drinks inside him; it made her feel as if she'd done something unbelievably stupid.

To her tired mind the question seemed unbelievably stupid.

My mother prospered until she did something unbelievably stupid.

If you do something unbelievably stupid to that giant spreadsheet today, you can bring back the version you edited last week.

"You don't suppose they plan on doing something unbelievably stupid, do you?"

"It was an unbelievably stupid and foolish decision to open that business."

I see now that I was unbelievably stupid about these boots.