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
Los Angeles police responded to three alarms at the facility during the biggest heist in the city’s history on Easter weekend, but the criminals remained undetected.
—Richard Winton, Los Angeles Times, 15 Apr. 2025
Despite two wellness checks by the state’s Department of Children and Families and police visits in 2004, the alleged mistreatment went undetected.
—Ray Sanchez, CNN Money, 15 Apr. 2025
For some, the spots go undetected, or do not show up at all.
—Emily Baumgaertner Nunn, New York Times, 4 Apr. 2025
Drug traffickers conduct surveillance operations to ensure the narco-subs move through the waters undetected.
—Michael Loria, USA TODAY, 20 Mar. 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.
Richard Winton, Los Angeles Times, 15 Apr. 2025
Despite two wellness checks by the state’s Department of Children and Families and police visits in 2004, the alleged mistreatment went undetected.
—Ray Sanchez, CNN Money, 15 Apr. 2025
For some, the spots go undetected, or do not show up at all.
—Emily Baumgaertner Nunn, New York Times, 4 Apr. 2025
Drug traffickers conduct surveillance operations to ensure the narco-subs move through the waters undetected.
—Michael Loria, USA TODAY, 20 Mar. 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 29 Apr. 2025.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
Share