un·​de·​tect·​able | \ ˌən-di-ˈtek-tə-bəl How to pronounce undetectable (audio) , -dē- \

Definition of undetectable

: 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

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Other Words from undetectable

undetectably \ ˌən-​di-​ˈtek-​tə-​blē How to pronounce undetectably (audio) , -​dē-​ \ adverb
an undetectably small change

Examples of undetectable in a Sentence

Recent Examples on the Web The Hatch chiles and cheese sauce were almost undetectable though. Shaena Montanari, The Arizona Republic, "Downtown Phoenix has a new spot to enjoy beer and pizza on a patio. Here's what to order," 5 Nov. 2020 Deep within the colors of Restricted Residence’s red-oranges and yellow-blues, Price strives to capture the undetectable. Lily Katzman, Smithsonian Magazine, "Nearly a Decade After Fukushima, Photos Capture Residents’ Bittersweet Return," 17 Jan. 2020 But undetectable textfakes—masked as regular chatter on Twitter, Facebook, Reddit, and the like—have the potential to be far more subtle, far more prevalent, and far more sinister. Renee Diresta, Wired, "AI-Generated Text Is the Scariest Deepfake of All," 31 July 2020 One of Gadêlha’s students, for example, is looking at how the body’s slight, undetectable oscillations could be useful in developing foot and ankle prosthetics. Courtney Sexton, Smithsonian Magazine, "Researchers Discover How Human Sperm Really Swim," 31 July 2020 Today combination chemotherapy reduces mother-to-child transmission to undetectable levels. William A. Haseltine, Scientific American, "Lessons from AIDS for the COVID-19 Pandemic," 1 Oct. 2020 Seams are fused together to create undetectable joints, which makes solid surface great for large or long sections of countertops and oversized island tops. Joe Lindsey, Popular Mechanics, "Types of Countertops: How to Choose the Best Material for Your Kitchen," 30 Sep. 2020 The statistical might of machine learning algorithms can discover tiny correlations in test datasets undetectable by people that reveal correct answers without requiring a human’s wider understanding of the world. Tom Simonite, Wired, "Go Ahead, Try to Sneak Bad Words Past AI Filters—for Research," 24 Sep. 2020 Not all people with fibroids have symptoms, and the size and shape of the fibroid can vary greatly, ranging from tiny growths that are undetectable to the human eye to large masses that can distort the uterus’ shape. Mary Retta, Allure, "Why Are Black Women More at Risk for Uterine Fibroids?," 16 Sep. 2020

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'undetectable.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of undetectable

1863, in the meaning defined above

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Time Traveler for undetectable

Time Traveler

The first known use of undetectable was in 1863

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Statistics for undetectable

Last Updated

15 Nov 2020

Cite this Entry

“Undetectable.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/undetectable. Accessed 27 Nov. 2020.

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More Definitions for undetectable


How to pronounce undetectable (audio)

English Language Learners Definition of undetectable

: impossible to discover or notice : not detectable

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