undetectable

adjective

Definition of undetectablenext
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 At the time, a representative for Botanic Tonics, the company behind Feel Free, told USA TODAY its Feel Free Classic tonic contains only natural leaf kratom, with nearly undetectable levels of 7-OH. — Charles Trepany, USA Today, 21 Aug. 2026 This subtle watermark, undetectable to human readers, alters word patterns and persists through minor edits, with a detection API forthcoming. — Christopher Rim, Forbes.com, 21 Aug. 2026 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 See All Example Sentences for undetectable
Recent Examples of Synonyms for undetectable
  1. imperceptible
  2. invisible
  3. indistinguishable
  4. inaudible
  5. intangible
Adjective
  • Through a meditative duet between the performer’s cognition and their autonomic nervous system, activities that were largely imperceptible to an outside observer became known to the performer.
    — Sophie Landres, Artforum, 1 Oct. 2026
  • Meta offers a virtually imperceptible edge in sharpness—37 pixels per degree compared with Apple's 34—but Apple's broader view and sheer pixel count give it the clear win.
    — Will Greenwald, PC Magazine, 30 Sep. 2026
Definition of imperceptible
Adjective
  • They were rendered invisible in the dominant discourse, their deaths acceptable costs in a game of power politics and conquest.
    — Literary Hub, Literary Hub, 2 Oct. 2026
  • The rich cinematic imagery and sound give new forms to the often complex and invisible realities of climate change.
    — Georg Szalai, HollywoodReporter, 2 Oct. 2026
Definition of invisible
Adjective
  • Had Thursday gone differently, the present and future may have been indistinguishable.
    — Brian Hamilton, New York Times, 2 Oct. 2026
  • Thus the Marlowe played by Mitchum in the 1978 remake of The Big Sleep seems like an entirely different person from the original played by Bogart in 1946, despite their almost indistinguishable stories.
    — Harmon Siegel, Artforum, 1 Oct. 2026
Definition of indistinguishable
Adjective
  • That 7dBA output is practically inaudible—quieter than rustling leaves (around 20dBA) and well below the 25dBA to 30dBA ambient floor of a quiet library or nighttime bedroom.
    — Brian Westover, PC Magazine, 1 Oct. 2026
  • After 10 loud snores and two that were nearly inaudible, all movement ceased.
    — MICHAEL GRACZYK, Arkansas Online, 24 Sep. 2026
Definition of inaudible
Adjective
  • Okay, Noah is somehow a Manhunter, though how this came to be is left vague and almost intangible for much of the episode.
    — Siddhant Adlakha, Vulture, 5 Oct. 2026
  • 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
Definition of intangible

Browse Nearby Words

undesired
undetectable
undetected
See all Nearby Words

Cite this Entry

“Undetectable.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/undetectable. Accessed 9 Oct. 2026.

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