as in imperceptible
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Recent Examples of unobservable
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
By the start of this era, the mysterious substance acting in opposition to gravity called dark energy will have driven everything in the universe apart so much that each individual black dwarf would be surrounded by vast darkness: The supernovae would even be unobservable to each another.
—Adam Mann, Science | AAAS, 11 Aug. 2020
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
By the start of this era, the mysterious substance acting in opposition to gravity called dark energy will have driven everything in the universe apart so much that each individual black dwarf would be surrounded by vast darkness: The supernovae would even be unobservable to each another.
—Adam Mann, Science | AAAS, 11 Aug. 2020
Recent Examples of Synonyms for unobservable
Adjective
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This means breathing in a gentle imperceptible way.—
Joseph Sudhip,
Forbes,
6 Dec. 2024
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Bonus points: For the way longtime linemate Jari Kurri delivers an almost imperceptible pat on the back right after the goal.—
Sean McIndoe,
New York Times,
26 Mar. 2025
Adjective
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The Hubble Space Telescope captured a new image of NGC 5530, which is classified as a flocculent spiral galaxy due to its patchy and indistinct arms, according to a statement from the European Space Agency (ESA).—
Samantha Mathewson,
Space.com,
7 Apr. 2025
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Real estate off-track isn’t frothy if indistinct window dressing — no Donk.—
Craig Jenkins,
Vulture,
4 Apr. 2025
Adjective
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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
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As a result, any visible auroras will likely be faint and possibly unnoticeable to the naked eye because of competition from a bright moon.—
Chandelis Duster,
NPR,
14 Feb. 2025
Adjective
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Most industry observers will recognize the pungent whiff of AI that YouTube’s algorithm lifts under the nose, but for some, the movie commercials can be indiscernible from the real deal.—
Jake Kanter,
Deadline,
28 Mar. 2025
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This quality of presencing the future opens one to the boundless field—the indiscernible fog—out of which presence emerges, something mysterious and beyond naming, but pointed to by many names: God, Source, universal Mind, emptiness or absolute absence.—
Ginny Whitelaw,
Forbes,
1 Mar. 2025
Cite this Entry
“Unobservable.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/unobservable. Accessed 16 Apr. 2025.
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