fly under the radar

English

Etymology

From military contexts, where aircraft would fly low to avoid being detected by radar.

Pronunciation

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Verb

fly under the radar (third-person singular simple present flies under the radar, present participle flying under the radar, simple past and past participle flew under the radar)

1. (idiomatic) To go unnoticed, especially for a long period of time.

Related terms

• slip under the radar