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
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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
With a milky texture, the sunscreen blends into the skin with an undetectable finish, and the product is fragrance-free.
—Jenny Berg, Vogue, 16 Mar. 2026
The cinder block building housing animals for adoption is unasuming and undetectable from main roads, including nearby Old 56 Highway.
—Kendrick Calfee, Kansas City Star, 13 Mar. 2026
See All Example Sentences for undetectable
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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
With a milky texture, the sunscreen blends into the skin with an undetectable finish, and the product is fragrance-free.
—Jenny Berg, Vogue, 16 Mar. 2026
The cinder block building housing animals for adoption is unasuming and undetectable from main roads, including nearby Old 56 Highway.
—Kendrick Calfee, Kansas City Star, 13 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 2 Apr. 2026.
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