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 With health authorities and experts dependent on dairy workers and their contacts volunteering for monitoring their symptoms and getting tested, those tracking the virus have turned to other data sources to look for signs of undetected spread. Alexander Tin, CBS News, 3 May 2024 Cancer develops when cells accumulate mutations that enable them to continue to grow and divide while simultaneously going undetected by the immune system. John Ligon, The Conversation, 1 May 2024 See all Example Sentences for undetected 

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'undetected.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

circa 1602, in the meaning defined above

Time Traveler
The first known use of undetected was circa 1602

Dictionary Entries Near undetected

Cite this Entry

“Undetected.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/undetected. Accessed 10 May. 2024.

More from Merriam-Webster on undetected

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!