| He also said a weak signal could be scrambled and be undetected by another broadcaster. |
| The person or people behind the anthrax attacks were here at home, and may still be here, undetected and certainly uncaught. |
| Vessels, especially traditional dhows, can land and depart from the coast unregistered and undetected. |
| Many programs that surreptitiously access the internet go undetected by users. |
| Such damage might emerge after cerebellar maldevelopment, or an earlier undetected hypoxic or ischemic event. |
| The chances of lying your way into a job and remaining unsuspected and undetected have become slimmer. |
