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
Primordial black holes remain undetected and therefore hypothetical.
—Robert Lea, Space.com, 3 June 2026
And unlike drug addictions, problem gambling can more easily go undetected by friends and family members.
—Elisabeth Buchwald, CNN Money, 28 May 2026
Up to 89% of those costs stem from presenteeism, which means most losses go undetected in standard productivity metrics.
—Nakisha Dixon, Forbes.com, 28 May 2026
There is no vaccine or treatment for the rare Bundibugyo type of Ebola, which has been spreading undetected for weeks in eastern Congo.
—ABC News, 26 May 2026
See All Example Sentences for undetected
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Robert Lea, Space.com, 3 June 2026
And unlike drug addictions, problem gambling can more easily go undetected by friends and family members.
—Elisabeth Buchwald, CNN Money, 28 May 2026
Up to 89% of those costs stem from presenteeism, which means most losses go undetected in standard productivity metrics.
—Nakisha Dixon, Forbes.com, 28 May 2026
There is no vaccine or treatment for the rare Bundibugyo type of Ebola, which has been spreading undetected for weeks in eastern Congo.
—ABC News, 26 May 2026
See All Example Sentences for undetected
Cite this Entry
“Undetected.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/undetected. Accessed 6 Jun. 2026.
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