drop off the radar

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drop off the radar

1. (idiomatic) To vanish or fall into obscurity.
   • 2003, Daniel Bukszpan, Ronnie James Dio, The Encyclopedia of Heavy Metal

     Not long after that, the band seemed to drop off the radar entirely, leading many to assume that they had broken up...

   • 2006, Laurie Pasiuk, Vault Guide to the Top Internet Industry Employers

     So why have users stuck with the site when so many other search engines have dropped off the radar? Well, they're not logging on just for the search engine.

   • 5 December 2009, Toronto Star - One-hit wonders make a musical smash

     Greenbaum didn't dramatically drop off the radar as soon as that song peaked, but kept slogging away for five years with diminishing returns...

• off the radar
• under the radar

• drop off the map