undetected

They feared some undetected trace of poison.

This heating helps to break down weak spots in the dielectric that otherwise might pass through the electrode undetected, only to fail during a later spark or hipot test.

The virus went undetected for weeks.

The spy remained undetected in the enemy camp.

The security breach went undetected until it was too late.

The hidden camera allowed the thief to go undetected.

The error in the system went undetected during testing.

The tumor had been growing undetected for years.

The hacker's presence remained undetected by the firewall.

The poison was tasteless and left no trace, making it undetected.

The spy's encrypted messages remained undetected by authorities.

The security guard failed to notice the undetected intruder.

This time they've managed to remain undetected.

These creatures are smart. They know how to go undetected.

Some may have had undetected mild or asymptomatic reinfections.

" It's just that a lot of them go undetected."

A jaguar's patterns help it slink undetected across the sun-dappled rainforest floor.

Infections in developing countries may be going undetected.

She was accomplishing so much, and she continued to go undetected.

Authorities say the virus has been spreading undetected for a week.

I was surprised. How many of them could walk among us undetected?

And you know the number one priority in the submarine is to remain undetected.