undetected
adjective
un·de·tect·ed
ˌən-di-ˈtek-təd 
-dē-
: not observed, noticed, or detected
an undetected flaw/error
an undetected illness
These rare mistakes are subtle and may go undetected for months and even years.—
Mario Salvadori
Mario SalvadoriExamples of undetected in a Sentence
Recent Examples on the Web
Behind him, officials key to his brutal rule made a mass exodus, virtually undetected.
—Danny Makki, New York Times, 16 Oct. 2025
Employees with administrative privileges were often tricked into authorizing malicious apps, while default permission settings allowed those apps to operate undetected.
—Kurt Knutsson, FOXNews.com, 16 Oct. 2025
The lair goes undetected for six months.
—Theoden Janes, Charlotte Observer, 10 Oct. 2025
The actual number of incidents, though, is likely higher, as many incidents go undetected.
—Marni Rose McFall, MSNBC Newsweek, 10 Oct. 2025
See All Example Sentences for undetected
Examples are automatically compiled from online sources to
show current usage.
Read More
Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
Send us feedback.
Danny Makki, New York Times, 16 Oct. 2025
Employees with administrative privileges were often tricked into authorizing malicious apps, while default permission settings allowed those apps to operate undetected.
—Kurt Knutsson, FOXNews.com, 16 Oct. 2025
The lair goes undetected for six months.
—Theoden Janes, Charlotte Observer, 10 Oct. 2025
The actual number of incidents, though, is likely higher, as many incidents go undetected.
—Marni Rose McFall, MSNBC Newsweek, 10 Oct. 2025
See All Example Sentences for undetected
Cite this Entry
“Undetected.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/undetected. Accessed 24 Oct. 2025.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
Share