She slipped in through a side door and made her way to her bedroom undetected.

With those, and his looks being fairly average for any number of groups of people, he could easily slip back into the country undetected.

After that they made better progress and managed to slip undetected out into the emptiness.

The darkness should make it easier for them to slip undetected around back to the kitchen entrance.

A few more minutes and she would have been able to slip away undetected.

"All the better to slip into your country undetected, my dear."

In such an attack, officials said, a submarine could fire, then slip away undetected.

The unofficial version is that they were built by the Chinese as a way to slip around town undetected.

At one or two in the morning, surely I can slip into that building undetected.

Clearly, they'd had all the time in the world to stroll back to their vehicles and simply slip away undetected.