flew under the radar

Went undetected deliberately

To fly under the radar is to avoid detection or scrutiny, operating in a way that doesn't attract attention.

The expression comes from military aviation, where aircraft flying at very low altitudes can evade radar systems.

In everyday use, it describes people, actions, or things that go unnoticed, whether intentionally or not.

She flew under the radar for years before anyone realized she was running the whole operation.

That album flew under the radar when it came out but became a cult classic.

Related

plain sight · slipped through the cracks · surreptitious · unnoticed · imperceptible · inconspicuous · stealth mode · clandestine · off the grid · calculated · covert · ignored · self-effacing · circumspect · indirect · tactical · veiled · strategic

Opposites
visibility/attention

flew under the radarstood out

Was notably conspicuous

made waves · in the spotlight · center of attention · went viral · raised eyebrows

publicity/media coverage

flew under the radarwent viral

Achieved rapid online spread

trended · broke the internet

intentional concealment vs. display

flew under the radarmade a scene

Behaved dramatically in public

stole the show · showboated · grandstanded · flaunted · showed off

Family

under, radar, radars

Familiarity
Top 100,000
Profile
Known to kids · Used worldwide · Timeless · Abstract · Everyday, not technical · Rated G