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 That means even a clump large enough to play the role of a gravitational lens would be undetectable. — Robert Lea, Space.com, 19 Aug. 2026 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 See All Example Sentences for undetectable

Recent Examples of Synonyms for undetectable

Adjective

Masons, carvers and conservators all work towards the preservation and enhancement and even creation of heritage, but as experience and knowledge grows so a gradual almost imperceptible transition occurs.

— Literary Hub, Literary Hub, 21 Sep. 2026
The building has no ramps as the designers kept all slopes to a gentle two percent that’s virtually imperceptible.

— Edward Keegan, Chicago Tribune, 19 Sep. 2026

Definition of imperceptible

Adjective

Geiger-Müller and neutron detectors found no detectable gamma or X-ray emissions, while neutron counts remained statistically indistinguishable from background during about five days of monitoring.

— Neetika Walter, Interesting Engineering, 22 Sep. 2026
It has been said that any sufficiently advanced technology is indistinguishable from magic.

— Dan Michel, Robb Report, 19 Sep. 2026

Definition of indistinguishable

Adjective

And, for one entire episode, a gentle breeze rustles the branches of a weeping willow as an inaudible conversation takes place nearby.

— Josh Gondelman, New Yorker, 17 Sep. 2026
But this wasn’t nearly enough for Joy Division’s rabid fanbase, and there’s been a thriving black market for bootleg concert recordings for decades, even though the sound quality of most of the tapes varies from half-decent to borderline inaudible.

— Andy Greene, Rolling Stone, 8 Sep. 2026

Definition of inaudible

Adjective

In early 2019, Philadelphia was one of six brands the company wrote down as the value of its intangible assets fell.

— Amelia Lucas, CNBC, 15 Sep. 2026
Anderson, though, graded out at the very top of all of the Texans’ quantifiable and intangible evaluation areas.

— Jourdan Rodrigue, New York Times, 11 Sep. 2026

Definition of intangible

Browse Nearby Words

undesired

undetectable

undetected

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Style

“Undetectable.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/undetectable. Accessed 27 Sep. 2026.

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Synonyms of undetectable

adjective

Example Sentences

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