under your nose

(right) under (one's) (very) nose

1. In a place easy to see or find. I've been looking all over for that invitation, and it was right under my nose the whole time!
2. When one is physically present. I can't believe that one of my employees was falsifying records right under my nose.
See also: nose
Farlex Dictionary of Idioms.

under your nose

COMMON If something, especially a bad thing, happens under your nose, it happens in your presence or very near to you, and you either do not notice it or cannot do anything to stop it. I became convinced that something sinister was taking place right under my nose. Then suddenly I knew what had been going on here all along, right under our noses. Note: You can also say that someone takes something from under your nose, meaning that they steal it in your presence or very near to you, and you either do not notice it or cannot do anything to stop it. The prisoners stole it from under the noses of two red-faced police officers.
See also: nose
Collins COBUILD Idioms Dictionary, 3rd ed.
See also:
  • (right) under (one's) (very) nose
  • grapple
  • grappling
  • tear loose from (someone or something)
  • knock the hell out of (one)
  • beat the living daylights out of
  • beat the living daylights out of someone
  • beat the tar out of