off the radar

off the radar

Unseen or undetected for a long time. Mr. Smith has gone off the radar since his wife died, so I'm going to stop by his house this afternoon and check on him. That rebel group's operations have been completely off the radar for years—I worry we'll never be able to find them.
See also: off, radar
Farlex Dictionary of Idioms.

on/off the ˈradar (screen)

used to say that people are aware or not aware of something, or are thinking or not thinking about it: Foreign policy is just not on most people’s radar screens. Eastern Europe has remained off the radar of most UK investors.
See also: off, on, radar
Farlex Partner Idioms Dictionary
See also:
  • on/off the radar
  • slip under the/(one's) radar
  • drop beneath the/(one's) radar
  • slip beneath the/(one's) radar
  • gravity check
  • rubber check
  • rubber cheque
  • check up on (someone or something)
  • check
  • check, please
References in periodicals archive
Hearts manager Craig Levein met with the 32-year-old but despite promising a contract offer has dropped off the radar.
Rams shepherd Bryson into fold
The Japan Armed Forces' F35 fighter jet went off the radar at around 7.30 pm (local time), according to NHK World.
Japan's F35 fighter jet goes missing during drill
There are cars that seem to fall off the radar. The Ford S-Max is one of them.
TAKING IT TO THE S-MAX; ON THE ROAD
According to Joh, Musa went off the radar not because he ran away, but to seek medical treatment following a heart bypass surgery .
Musa Aman to return home after treatment, says former special aide
Islamabad -- MNA Ghulam Haider Thand from Dera Khazi Khan and Sultan Hanjra from Muzaffar Garh have managed to get them off the radar or NAB dropped them off.
NAB fails to tie up investigation against two MNAs
The plane was on its way to Nairobi from Kitale and was reported missing after it went off the radar minutes after taking off from the Kitale airstrip.
No survivors in FlySax plane crash, says PS Paul Maringa
Director-General of the center told FNA that "the plane went off the radar screen after the pilot requested to descent to lower altitude".
URGENT: Turkish Private Jet Crashes in Southwestern Iran
Tareen once again alleged that Subhan is a "frontman" of Sharif brothers and they have a role in Subhan going off the radar.
CSRC letter exposed PML-N's corruption in Multan metro bus project: Tareen
the helicopter lifted off from Lanyu bound for Taitung, however within three minutes after takeoff, communication was lost with the helicopter and the aircraft went off the radar.
Black Hawk MEDEVAC helicopter with 6 on board goes missing
He was a Man of Steel who disappeared off the radar a bit but then came back and almost won it again.
Zak was back on track
by PTI Ravichandran Ashwin is slowly falling off the radar as far as limited overs cricket is concerned.
Cricket: Nehra returns to India's T20 squad, Ashwin and Jadeja ignored
An official source told the press that flight MS804, which departed from Paris and was heading to the Egyptian capital, went off the radar when entering Egyptian airspace at around 2:45 am local time.
Egyptair flight goes off radar - airliner source
THE founder of the Child Exploitation and Online Protection Centre blames police cutbacks for sex offenders slipping off the radar.
Forces overwhelmed by cutbacks
UK Coastguard was alerted at about 9.25am after the aircraft disappeared off the radar. The search is taking place about three miles off Blackpool: the plane was approaching the town's airport when it disappeared.
Search for plane is suspended
Newcastle United made an off the radar summer signing when acquiring the services of teenage defender Gideon Adu-Peprah from Manchester City.
Newcastle United made off the radar summer signing by bringing in Gideon Adu-Peprah; Newcastle are set to take a look at Ghanaian left-back Gideon Adu-Peprah over the next two years as they look to provide more first team cover