as in imperceptible
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Recent Examples of unobservable
The same goes for the gizmos that enable new parents to observe their little ones in previously unobservable ways.
—
Hillary Kelly, The Atlantic, 5 May 2025
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
Hillary Kelly, The Atlantic, 5 May 2025
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
Recent Examples of Synonyms for unobservable
Adjective
-
Tucked within a dense forest and set inside a cave, the restaurant is almost imperceptible from the outside.—
Susmita Baral,
Travel + Leisure,
7 July 2025
-
Generally, corn and rice pasta have a mild flavor that’s almost imperceptible under any sauce.—
BestReviews,
Chicago Tribune,
18 June 2025
Adjective
-
In years to come, the memories would have been indistinct.—
Nick Miller,
New York Times,
19 May 2025
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Something similar could be said for the grainy, indistinct black-and-white photos of tortured and murdered prisoners, the shaky footage of work camps.—
Bilge Ebiri,
Vulture,
13 June 2025
Adjective
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Bay's darkening around the bikini area still hasn’t fully resolved, but the discoloration on her arms has faded to be almost unnoticeable.—
Tereza Shkurtaj,
People.com,
14 June 2025
-
At the time, unnoticeable hair loss felt like the least of my worries.—
David Faris,
MSNBC Newsweek,
12 Apr. 2025
Adjective
-
The delicate ruffle design is nearly indiscernible between the two.—
Izzy Baskette,
People.com,
30 June 2025
-
The difference between wired (1ms) and wireless (2ms) input lag is minimal, but the resistance provided by the face buttons is essentially faultless, so the difference is outright indiscernible.—
Matt Gardner,
Forbes.com,
20 June 2025
Cite this Entry
“Unobservable.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/unobservable. Accessed 15 Jul. 2025.
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