as in imperceptible
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Recent Examples of unobservable
Ars Video The vast bulk of the Universe will remain forever unobservable to traditional telescopes.
—
ArsTechnica, 16 Apr. 2025
With enough data on the correlations between skulls and faces, Nilsson notes, a neural network could pick up patterns that are unobservable to even the keenest human eye, vastly improving predictions of facial structure.
—Cody Cottier, Discover Magazine, 7 Feb. 2025
These differences in neural activity suggest that autistic individuals may rely less on mental state information, which is unobservable and abstract, when processing social interactions and more on tangible, concrete details.
—Trystan Loustau and Liane Young, TIME, 9 Jan. 2025
That sets the ultimate limit of what’s in our observable Universe, and whatever part is unobservable, beyond that, can only be inferred, not directly measured.
—Big Think, 14 June 2024
The formula could be used to infer what was really happening during a collision, even during the unobservable interim moments.
—Quanta Magazine, 23 May 2024
All are using shifts in gravitational waves – the ripples created in spacetime (yes, really) – to observe previously unobservable things and events in the universe.
—Andre Mouchard, Orange County Register, 19 May 2024
For Davies, the potential to test the effect could open up exciting new doors for both theoretical and applied physics, further validating nigh-unobservable phenomena predicted by theorists while expanding the tool kit experimentalists can use to interrogate nature.
—Joanna Thompson, Scientific American, 20 May 2022
The team say that a noise level of just 50ppm would make the technosignature unobservable, regardless of how long the observatory studied Trappist-1e.
—The Physics Arxiv Blog, Discover Magazine, 28 Feb. 2022
ArsTechnica, 16 Apr. 2025
With enough data on the correlations between skulls and faces, Nilsson notes, a neural network could pick up patterns that are unobservable to even the keenest human eye, vastly improving predictions of facial structure.
—Cody Cottier, Discover Magazine, 7 Feb. 2025
These differences in neural activity suggest that autistic individuals may rely less on mental state information, which is unobservable and abstract, when processing social interactions and more on tangible, concrete details.
—Trystan Loustau and Liane Young, TIME, 9 Jan. 2025
That sets the ultimate limit of what’s in our observable Universe, and whatever part is unobservable, beyond that, can only be inferred, not directly measured.
—Big Think, 14 June 2024
The formula could be used to infer what was really happening during a collision, even during the unobservable interim moments.
—Quanta Magazine, 23 May 2024
All are using shifts in gravitational waves – the ripples created in spacetime (yes, really) – to observe previously unobservable things and events in the universe.
—Andre Mouchard, Orange County Register, 19 May 2024
For Davies, the potential to test the effect could open up exciting new doors for both theoretical and applied physics, further validating nigh-unobservable phenomena predicted by theorists while expanding the tool kit experimentalists can use to interrogate nature.
—Joanna Thompson, Scientific American, 20 May 2022
The team say that a noise level of just 50ppm would make the technosignature unobservable, regardless of how long the observatory studied Trappist-1e.
—The Physics Arxiv Blog, Discover Magazine, 28 Feb. 2022
Recent Examples of Synonyms for unobservable
Adjective
-
If this switching happens quickly enough, any flickering should be imperceptible to the human eye.—
Paul Monckton,
Forbes.com,
30 Apr. 2025
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John Ebel, a seismologist at Boston University and historian of East Coast earthquakes, is skeptical that what’s going on in Summerville could be caused by imperceptible tremors; in his experience, earthquake lights are typically associated with major seismic events.—
Cody Cottier,
Discover Magazine,
19 Feb. 2025
Adjective
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Guitarist Johnstone was alternately audible and indistinct.—
George Varga,
San Diego Union-Tribune,
10 May 2025
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Sherlock and Amelia are not exactly mentor and mentee, but something less interesting and indistinct.—
Nina Metz,
Chicago Tribune,
16 Apr. 2025
Adjective
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At the time, unnoticeable hair loss felt like the least of my worries.—
David Faris,
MSNBC Newsweek,
12 Apr. 2025
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Except that could be slim enough to be unnoticeable in the hand, but thick enough to handle a bigger cell inside.—
David Phelan,
Forbes,
11 Mar. 2025
Adjective
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The disposition of the cart and the boy before Patel’s reach – including whether the child might have been falling and whether the cart clipped anything – is indiscernible because Patel’s back obscures both from the camera.—
Chris Boyette,
CNN Money,
4 May 2025
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The way forward is often indiscernible, with trail markers like signs, cairns, and ribbons, few and far between.—
Olivia James,
Outside Online,
24 Apr. 2025
Cite this Entry
“Unobservable.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/unobservable. Accessed 19 May. 2025.
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