undetectable

adjective

un·​de·​tect·​able ˌən-di-ˈtek-tə-bəl How to pronounce undetectable (audio)
-dē-
: unable to be detected : impossible to discover or notice : not detectable
an almost undetectable change
undetectable traces of poison
Signs of life may be so minimal as to be undetectable by modern instruments …Lauren J. Livo
undetectably adverb
an undetectably small change

Examples of undetectable 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.
The construction contractor Tutor Perini’s new video rendering shows the future Manhattan Detention Center, which will be built on the site of its predecessor near Chinatown, as a staunchly generic high-rise, its function undetectable to passers-by. Justin Davidson, Curbed, 24 Jan. 2025 The technology picked up cancer cells in Tooth’s screening that were undetectable by the human eye, according to SWNS. Angelica Stabile, Fox News, 22 Nov. 2024 The problem is that deepfakes are designed to be undetectable using generative adversarial networks (GANs). Rick Hutchinson, Forbes, 6 Jan. 2025 People who use antiretroviral medications can reduce the viral load of HIV in the body to undetectable levels, which can stop them from passing it to others. Dan Perry, Newsweek, 4 Jan. 2025 See all Example Sentences for undetectable 

Word History

First Known Use

1863, in the meaning defined above

Time Traveler
The first known use of undetectable was in 1863

Dictionary Entries Near undetectable

Cite this Entry

“Undetectable.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/undetectable. Accessed 2 Feb. 2025.

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