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 Levels of the chemical absorbed into the skin were nearly undetectable, the studies found. — ABC News, 14 Oct. 2026 And indeed, no patients with undetectable ctDNA before endocrine therapy progressed. — Allessandra Dicorato, STAT, 8 Oct. 2026 The show only exists because McConaughey and Harrelson decided to make it, and whatever passion, knowledge, grit, and hustle was needed to turn a celebrity indulgence into scripted entertainment is undetectable in the final product. — Ben Travers, IndieWire, 23 Sep. 2026 Text that has been heavily rewritten, paraphrased, translated, or mixed with other writing may lose enough of Claude's statistical pattern to become undetectable. — New Atlas, 25 Aug. 2026 See All Example Sentences for undetectable

Recent Examples of Synonyms for undetectable

Adjective

Telescopes do not stay perfectly still, so nearly imperceptible changes caused by wobbling alter the resulting images of starlight.

— Adam Harrington, CBS News, 4 Nov. 2026
Instead, his team developed SynthID, an imperceptible, incorruptible digital watermark now stamped to anything generated by Google AI, but also OpenAI, Nvidia, Kakao, and, soon, Apple.

— Daniel Varghese, Time, 15 Oct. 2026

Definition of imperceptible

Adjective

Compared to the roaring thunder of a modern data center, this cluster is nearly inaudible.

— ArsTechnica, ArsTechnica, 9 Oct. 2026
Moments after McBride complained to Seeman about the play, sideline cameras showed Seeman mouthing inaudible words, appearing to be expletives, to McBride, who seemed surprised by Seeman’s conduct.

— Angel Saunders, PEOPLE, 6 Oct. 2026

Definition of inaudible

Adjective

In Singapore, Zechariah Chan, a partner at law firm Lee & Lee, said protecting trade secrets can be particularly difficult in the semiconductor industry, where proprietary knowledge often involves intangible manufacturing techniques and methods.

— Jenny Lee, CNBC, 5 Nov. 2026
The quest for tickets is the first of several McGuffins in the film that, while fun, bring to life the essential truth that the core of being teenage is the shiny allure of intangible pursuits, those things that promise fame, friends and being cool.

— Damon Wise, Deadline, 5 Nov. 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 15 Nov. 2026.

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Synonyms of undetectable

adjective

Example Sentences

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