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 app is invisible and undetectable on the phone. ArsTechnica, 3 July 2025 The Jackal also works with a brilliant gun designer who can pack long-range sniper rifles into small undetectable spaces. Anne Thompson, IndieWire, 19 June 2025 And while the importance of the visual outcome is obvious — achieving undetectable incisions via adept suturing — the aptitude of the practitioner’s craft determines the effect the patient didn’t think enough about in advance: loss, or not, of feeling. Gary Baum, HollywoodReporter, 16 June 2025 She’s been a celebrity go-to for years—lending her undetectable blending, illuminating, and accentuating prowess to the likes of Jennifer Aniston and Cameron Diaz for year; and now, somehow managing to distill her artistry in a line of products that feel expert, yes, but shockingly approachable. Kiana Murden, Vogue, 23 May 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

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Cite this Entry

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

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