undetected

adjective

un·​de·​tect·​ed ˌən-di-ˈtek-təd How to pronounce undetected (audio)
-dē-
Synonyms of undetectednext
: 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
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More ships have been switching on their public AIS tracking transponders, but some may have gone undetected due in part to major disruption of AIS signals as well as ships not showing their movements through the strait. Reuters, NBC news, 24 June 2026 Their goal is to remain undetected. Atharva Gosavi, Interesting Engineering, 23 June 2026 Without oversight, the crime often goes undetected Committing deed fraud is remarkably simple. Donovan McCarty, The Conversation, 22 June 2026 Now Florida is leading the nation by ensuring new high school student-athletes are not playing with an undetected heart condition like Sean’s. Martha Lopez-Anderson, The Orlando Sentinel, 21 June 2026 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 26 Jun. 2026.

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