undetectable
adjective
un·de·tect·able
ˌən-di-ˈtek-tə-bəl 
-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
Lauren J. LivoExamples of undetectable in a Sentence
Recent Examples on the Web
About one‑third of liquid formulas and more than half powdered formulas earned top ratings for having very low or undetectable levels of arsenic, lead and other contaminants.
—Jenni Fink, MSNBC Newsweek, 31 Mar. 2026
Welcome to the 'undetectable' plastic surgery era.
—Charles Trepany, USA Today, 31 Mar. 2026
This will render research, innovation and societal advances as dim, undetectable versions of themselves, restricting the country’s ability to lead globally in addressing the most pressing issues of our times.
—Jane M. Saks, Chicago Tribune, 23 Mar. 2026
Cancer is often undetectable in a mammogram for women with dense breasts.
—Laura Schulte, jsonline.com, 19 Mar. 2026
See All Example Sentences for undetectable
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Jenni Fink, MSNBC Newsweek, 31 Mar. 2026
Welcome to the 'undetectable' plastic surgery era.
—Charles Trepany, USA Today, 31 Mar. 2026
This will render research, innovation and societal advances as dim, undetectable versions of themselves, restricting the country’s ability to lead globally in addressing the most pressing issues of our times.
—Jane M. Saks, Chicago Tribune, 23 Mar. 2026
Cancer is often undetectable in a mammogram for women with dense breasts.
—Laura Schulte, jsonline.com, 19 Mar. 2026
See All Example Sentences for undetectable
Cite this Entry
“Undetectable.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/undetectable. Accessed 8 Apr. 2026.
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