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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While many skin scents hover close to the skin with a nearly imperceptible sillage, Snif’s is infused with powdery orris.—
Jenny Berg,
Allure,
8 Feb. 2025
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According to Mohr, while the handoff between the electric motor and the combustion engine must be imperceptible, everything else must adhere to traditional Lamborghini DNA in terms of driving feel.—
Sean Evans,
Robb Report,
5 Feb. 2025
Adjective
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Often, the ad is for an indistinct mobile game featuring a woman with a freezing baby who must choose between spending her fifty gold coins on either building a working fireplace or repairing a broken window that’s letting in an icy breeze.—
Mathew Rodriguez,
Them,
11 Feb. 2025
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In Murnau’s film, this is Ellen and Nosferatu’s only night together, and the focus is on the vampire; his hollowed eyes, long claws, and kneeling figure are illuminated, while Ellen is turned away from the camera, her body a lumpy, indistinct shape on the bed.—
Roxana Hadadi,
Vulture,
22 Jan. 2025
Adjective
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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
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The glasses connect right to your phone, and the sound is clear for the wearer but unnoticeable in a normal environment.—
Amelia McBride,
Travel + Leisure,
15 Dec. 2024
Adjective
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Patterns of play have been largely indiscernible, and there’s little cohesion between the organs of defense, midfield and attack.—
Ben Church,
CNN,
28 Oct. 2024
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Mentions of cica, peptides, niacinamide, salicylic acid, and ceramides make many of their ingredient lists nearly indiscernible from each other.—
Devon Abelman,
Allure,
2 Oct. 2024
Thesaurus Entries Near unobservable
Cite this Entry
“Unobservable.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/unobservable. Accessed 22 Feb. 2025.
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