un·​ob·​serv·​able | \ ˌən-əb-ˈzər-və-bəl How to pronounce unobservable (audio) \

Definition of unobservable

: incapable of being observed : not observable particles so small that they are unobservable

Examples of unobservable in a Sentence

Recent Examples on the Web For a long time, this was thought to be unobservable, but nature gives us an opportunity where electric and magnetic fields are stronger than anyplace else known: in the immediate vicinity of a neutron star. Ethan Siegel, Forbes, 7 May 2021 Is this about observable or unobservable diversity? Kimberly A. Whitler, Forbes, 18 Apr. 2021 Powell wanted to make monetary policy less reliant on unobservable characteristics of the economy such as r-star and u-star, and to finally deliver on the promise of durable 2% inflation. Peter Coy,, 8 Oct. 2020 There is a profound difficulty at the heart of the science of consciousness: consciousness is unobservable. Gareth Cook, Scientific American, 14 Jan. 2020 Eventually, Peebles’s theories led to the discovery of dark energy, the invisible force that drives the expansion of the universe, and dark matter, the unobservable material that holds galaxies together. Sarah Kaplan, Washington Post, 8 Oct. 2019 Here’s a quantum analogy: The Sleeping Beauty problem is like an unobservable particle in a quantum superposition of 50 percent H and 50 percent T among the ensemble of puzzle enthusiasts. Quanta Magazine, 29 Jan. 2016 Their private emotional lives are unobservable to us. Samantha Boardman, Marie Claire, 30 Apr. 2019 Understanding how to glean this unobservable rate is critical to setting Fed interest-rate policy. Nick Timiraos, WSJ, 25 Mar. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'unobservable.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of unobservable

1615, in the meaning defined above

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The first known use of unobservable was in 1615

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Cite this Entry

“Unobservable.” Dictionary, Merriam-Webster, Accessed 25 Jul. 2021.

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