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
Chinese hackers Volt Typhoon recently compromised a Massachusetts public power utility and remained undetected in the utility's network for 300 days.
—Leeza Garber, MSNBC Newsweek, 3 Sep. 2025
As time ticks, the first escape, a splash, goes undetected.
—Thea Matthews, The Atlantic, 31 Aug. 2025
Its circling movements once provided cover for enslaved people to slip away undetected, fleeing into palenques (the free Black towns).
—Essence, 28 Aug. 2025
Over 400 crannog sites are recorded, with many more no doubt lying undetected.
—Carlton Reid, Forbes.com, 25 Aug. 2025
See All Example Sentences for undetected
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Leeza Garber, MSNBC Newsweek, 3 Sep. 2025
As time ticks, the first escape, a splash, goes undetected.
—Thea Matthews, The Atlantic, 31 Aug. 2025
Its circling movements once provided cover for enslaved people to slip away undetected, fleeing into palenques (the free Black towns).
—Essence, 28 Aug. 2025
Over 400 crannog sites are recorded, with many more no doubt lying undetected.
—Carlton Reid, Forbes.com, 25 Aug. 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 13 Sep. 2025.
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