slip beneath the/(one's) radar

slip beneath the/(one's) radar

To go unnoticed or undetected (by someone). With so many different amendments to the bill being made, some appropriations slipped beneath the radar. As the manager of this office, it's inexcusable that you allowed embezzlement by an employee to slip beneath your radar.
See also: beneath, radar, slip
Farlex Dictionary of Idioms.
See also:
  • slip under 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
  • fall beneath