under the radar (screen)

under the radar (screen)

Unnoticed or undetected. With so many different amendments to the bill being made, some appropriations slipped under the radar. I plan to stay under the radar screen until this controversy blows over.
See also: radar

below/under the ˈradar (screen)

if something is below/under the radar, people are not aware of it: The conflict has slipped below the radar screens of the mass media.Experts say a lot of corporate crime stays under the radar.
See also: below, radar