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
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This initial test did not generate all of life’s prerequisites, but Meng notes that other important compounds might have been present at undetectable levels. Cody Cottier, Scientific American, 14 Mar. 2025 Bonds was indicted in 2007 on perjury charges as well as obstruction of justice for allegedly lying in front of a grand jury during the government’s investigation into BALCO, a main manufacturer of an undetectable steroid that was running rampant in the league. Scott Thompson, Fox News, 6 Mar. 2025 In the world of luxury whisky, counterfeiters have found a lucrative niche refilling authentic empty bottles with inferior spirits, creating fakes that are virtually undetectable without breaking the seal. Mark Littler, Forbes, 27 Feb. 2025 But 2024 is not 2017; silly overlays have given way to undetectable beauty filters. Chloe Albanesius, PCMAG, 16 Dec. 2024 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

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Cite this Entry

“Undetectable.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/undetectable. Accessed 21 Mar. 2025.

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