undetected

adjective

un·​de·​tect·​ed ˌən-di-ˈtek-təd How to pronounce undetected (audio)
-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

Examples of undetected in a Sentence

Recent Examples on the Web
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.
These technologies can identify donors who are at a higher risk of carrying undetected mutations, lowering false-negative rates by up to 40% and enhancing overall efficiency. William A. Haseltine, Forbes.com, 4 June 2025 The risks of homelessness might be highest in the riverbed, as flooding can kill, fires easily spread, pollution threatens the water and overdoses may go undetected. Blake Nelson, San Diego Union-Tribune, 1 June 2025 From his elevated perch, the shooter had inflicted undetected damage. Chicago Tribune, 26 May 2025 Trump expressed concern over the late-stage discovery of Biden's aggressive cancer, which has spread to his bones, questioning how such a condition went undetected during Biden's presidency. Gabe Whisnant, MSNBC Newsweek, 19 May 2025 See All Example Sentences for undetected

Word History

First Known Use

circa 1602, in the meaning defined above

Time Traveler
The first known use of undetected was circa 1602

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Cite this Entry

“Undetected.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/undetected. Accessed 17 Jun. 2025.

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