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
The danger of workplace illness going undetected could be exacerbated if immigrants avoid hospitals and clinics where doctors could diagnose and raise alarms about emerging threats, experts said.
—Emily Alpert Reyes, Los Angeles Times, 8 Feb. 2025
But was the charm so prominent that another hidden message went undetected?
Swifties have taken to X (formerly Twitter) to protest the singer's earrings getting virtually no press.
—Thomas G. Moukawsher, Newsweek, 5 Feb. 2025
But studies and reporting suggest many cases have gone undetected, because testing has been patchy.
—Amy Maxmen, CNN, 30 Jan. 2025
Since the attack went undetected for so long, the hackers may have used the vulnerability against specific high-value targets to hijack their iPhone devices.
—Michael Kan, PCMAG, 27 Jan. 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.
Emily Alpert Reyes, Los Angeles Times, 8 Feb. 2025
But was the charm so prominent that another hidden message went undetected?
Swifties have taken to X (formerly Twitter) to protest the singer's earrings getting virtually no press.
—Thomas G. Moukawsher, Newsweek, 5 Feb. 2025
But studies and reporting suggest many cases have gone undetected, because testing has been patchy.
—Amy Maxmen, CNN, 30 Jan. 2025
Since the attack went undetected for so long, the hackers may have used the vulnerability against specific high-value targets to hijack their iPhone devices.
—Michael Kan, PCMAG, 27 Jan. 2025
See all Example Sentences for undetected
Dictionary Entries Near undetected
Cite this Entry
“Undetected.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/undetected. Accessed 16 Feb. 2025.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
Share