as in imperceptible
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Recent Examples of unobservable
This only gets worse with higher magnification, where even slight wobbles make subjects unobservable.
—
Matt Morris, Space.com, 4 Mar. 2026
These unobservable behaviors may be among the most important for educators.
—Dan Fitzpatrick, Forbes.com, 23 Feb. 2026
But responsibility diffuses across developers, deployers, and users, and interaction loops remain private and unobservable.
—Deb Roy, The Atlantic, 15 Feb. 2026
So, within standard general relativity, Einstein–Rosen bridges are unstable and unobservable.
—Rupendra Brahambhatt, Interesting Engineering, 17 Jan. 2026
Is the theory of the unobservable multiverse science or mere speculation?
—Literary Hub, 19 Nov. 2025
Its nucleus is also far bigger than other notable comets, while its arrival time was fine-tuned to bring it within tens of millions of kilometers from Mars, Venus and Jupiter and be unobservable from Earth at perihelion, along with other unexpected properties.
—Hannah Millington, MSNBC Newsweek, 30 Oct. 2025
Its underlying technologies were developed in the 1990s by the United States Naval Research Laboratory with the aim of providing a safe, unobservable method of communication to American spies.
—Andrei Soldatov, Foreign Affairs, 6 Apr. 2016
Matt Morris, Space.com, 4 Mar. 2026
These unobservable behaviors may be among the most important for educators.
—Dan Fitzpatrick, Forbes.com, 23 Feb. 2026
But responsibility diffuses across developers, deployers, and users, and interaction loops remain private and unobservable.
—Deb Roy, The Atlantic, 15 Feb. 2026
So, within standard general relativity, Einstein–Rosen bridges are unstable and unobservable.
—Rupendra Brahambhatt, Interesting Engineering, 17 Jan. 2026
Is the theory of the unobservable multiverse science or mere speculation?
—Literary Hub, 19 Nov. 2025
Its nucleus is also far bigger than other notable comets, while its arrival time was fine-tuned to bring it within tens of millions of kilometers from Mars, Venus and Jupiter and be unobservable from Earth at perihelion, along with other unexpected properties.
—Hannah Millington, MSNBC Newsweek, 30 Oct. 2025
Its underlying technologies were developed in the 1990s by the United States Naval Research Laboratory with the aim of providing a safe, unobservable method of communication to American spies.
—Andrei Soldatov, Foreign Affairs, 6 Apr. 2016
Recent Examples of Synonyms for unobservable
Adjective
-
Others were more imperceptible, like Rihanna on the red carpet with a baby bump.—
Jake Kanter,
Deadline,
18 Mar. 2026
-
My dream foundation is one that conceals blemishes but is so imperceptible that people will ask me about my skin care routine.—
Kaelin Dodge,
InStyle,
9 Mar. 2026
Adjective
-
Three gigantic abstract paintings lean against the counter, each an indistinct blob of color.—
Joe Hagan,
Vanity Fair,
18 Mar. 2026
-
Flashing by, indistinct, until something re-markable or strange grinds the journey to a halt.—
Literary Hub,
Literary Hub,
16 Mar. 2026
Adjective
-
To the untrained eye, rip currents may seem unnoticeable.—
Dinah Voyles Pulver,
USA Today,
11 Mar. 2026
-
The consequences of such an error, in the context of a computation where there is no cross-checking in place, can range from unnoticeable to catastrophic.—
Big Think,
Big Think,
24 Feb. 2026
Adjective
-
Rabia Amin, Cheema’s 27-year-old daughter, looked up at the fading pictures of the menu items, now comically indiscernible.—
Zareen Syed,
Chicago Tribune,
13 Jan. 2026
-
The nightingale flew around the fox’s head, the two of them chortling in their own indiscernible ways.—
Hazlitt,
Hazlitt,
19 Nov. 2025
Cite this Entry
“Unobservable.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/unobservable. Accessed 30 Mar. 2026.
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