slip under the/(one's) radar
slip under the/(one's) radar
To go unnoticed or undetected (by someone). With so many different amendments to the bill being made, some appropriations slipped under the radar. As the manager of this office, it's inexcusable that you allowed embezzlement by an employee to slip under your radar.
See also: radar, slip
Farlex Dictionary of Idioms.
- slip beneath the/(one's) radar
- drop beneath the/(one's) radar
- below the radar
- below the radar screen
- below/under the radar
- under the radar screen
- stay below the radar
- off the radar
- on/off the radar
- slip through one's fingers, to let