undetected
non-detected

So far as he could tell, they were still undetected.

It was not clear whether other cases might have gone undetected.

There was only one place to go where he could hope to stay undetected.

But getting it out again undetected may not be so easy.

It should be possible to move completely undetected on either side.

It didn't seem possible that they could make their approach undetected.

"How would she even be able to leave the village undetected?"

"In the past, so many of those things would have gone undetected."

"You really think we've got a shot at getting out of this country undetected?"

I can buy that she'd figure a way to get down to it undetected.

West has troops close enough to them that they might try to move in undetected.

It went undetected for close to a decade, he said.

He or she had taken on the job of killing undetected.

He still wanted to stay silent and undetected, if possible.

Undetected, holding her water, she had watched the whole thing.

To have any value it must keep its presence undetected.

She made a practice attack before leaving the scene undetected.

There was no near point where he might reach it undetected by the women.

I'm not sure anybody ever expected anyone to get this far undetected.

Outside of Europe women were able to dress as men and go undetected.

This time, however, there was little chance that it would go undetected.

Inside, the drug business often goes undetected, and is sometimes ignored.

He didn't seem to be paying much attention, but they could never walk past him undetected.

The fire would rage undetected for only a few minutes.

Enough to kill hundreds of people if he had gone undetected.

Even if the kd implementation is carefully written, numerical errors can result in a non-detected intersection and thus rendering errors (holes in the geometry) due to the missed ray-object intersection.