undetected

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Some ships have also transited Hormuz undetected: There have been reports that some ships have turned off their GPS-like signals and transited incognito, either for safety or because they are part of so-called shadow fleets.

From MarketWatch • Jun. 9, 2026

This suggests the outbreak had been spreading undetected for months.

From The Wall Street Journal • Jun. 3, 2026

WHO's Africa regional director Mohamed Yakub Janabi said Ebola had had a silent early phase, when symptoms resemble malaria or typhoid, meaning transmission can remain undetected.

From Barron's • May 22, 2026

A phishing email was used to launch the hack which allowed the cyber attackers to install malicious software and it remained undetected within the organisation's systems for 20 months.

From BBC • May 12, 2026

I was even more baffled when, instead of sneaking around the back, any hope of our passing undetected was dashed by Emma pushing me right through the front door.

From "Miss Peregrine's Home for Peculiar Children" by Ransom Riggs