used to say that people are not aware of something Experts say a lot of corporate crime stays under the radar.
below/under the radarjump to other results
to be likely to be very successful or popular soon Here are two records that are bubbling under the radar.
bubble under the radar (informal)jump to other results
used to say that people's attention is on or not on something The issue of terrorism is back on the radar screen. Since the scandal broke, all other issues seem to have disappeared off the radar screen as far as the media is concerned.
on/off the radar (screen)jump to other results