UNDETECTABLE Synonyms: 48 Similar and Opposite Words

undetectable

adjective

Definition of undetectable

as in imperceptible

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Example Sentences

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.

Recent Examples of undetectable Today, Prum takes medication to keep her HIV to undetectable levels in her body, preventing health complications. — Durrie Bouscaren, NPR, 6 Aug. 2026 Aguilar said treatment had suppressed the amount of the HIV virus in her husband’s blood to undetectable levels. — Vera Lucia Pappaterra, Miami Herald, 5 Aug. 2026 The best bras for older women address sagging, loss of volume, and other changes that come with aging, while remaining stylish and undetectable under clothing. — Jenny Berg, InStyle, 29 July 2026 Dioxins have a half-life in the body of seven to 11 years, according to the World Health Organization, and lead can also be undetectable in blood but still remain in the body, bound to bones, for decades. — Angus Chen, STAT, 22 July 2026 See All Example Sentences for undetectable

Recent Examples of Synonyms for undetectable

Adjective

Movie genres wax and wane over time in a way that can be borderline imperceptible.

— Owen Gleiberman, Variety, 22 Aug. 2026
And, scarily, this kind of inflammation is mostly imperceptible.

— Literary Hub, Literary Hub, 17 Aug. 2026

Definition of imperceptible

Adjective

The Chiefs would win a game off that touchdown, and the NFL would name Watson, previously an indistinguishable seventh-round pick, its AFC defensive player of the week.

— Sam McDowell August 29, Kansas City Star, 29 Aug. 2026
Audiences will be subject to more AI content on the big screen that’s indistinguishable from real human performances.

— Los Angeles Times, Los Angeles Times, 29 Aug. 2026

Definition of indistinguishable

Adjective

Sullivan spoke with attorneys at sidebar about the request, but the discussion was inaudible to observers in the courtroom at Plymouth Superior Court.

— Melina Khan, USA Today, 28 Aug. 2026
They are often seen during breaks chatting with one another, with their arms around one another’s shoulders during inaudible bench discussions.

— Taylor Romine, CNN Money, 26 Aug. 2026

Definition of inaudible

Adjective

In fact, experts have opined that these benefits are not just intangible impacts, but have real effects on the workforce.

— Dr. Sai Balasubramanian, Forbes.com, 22 Aug. 2026
Beyond the intangible value of his mere presence, Picollo pointed to the practical aspects.

— Kansas City Star, Kansas City Star, 21 Aug. 2026

Definition of intangible

Browse Nearby Words

undesired

undetectable

undetected

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“Undetectable.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/undetectable. Accessed 1 Sep. 2026.

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Synonyms of undetectable

adjective

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