UNPROVEN Synonyms: 50 Similar and Opposite Words

unproven

adjective

Definition of unproven

as in unproved

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Example Sentences

Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.

Recent Examples of unproven Dating Derinkuyu precisely is difficult; claims of Hittite or Phrygian origins (dating roughly to the 8th to 7th centuries BCE or earlier) are common but unproven. — Maya Chawla, Architectural Digest, 12 Oct. 2026 That spending is accelerating even as the technology remains largely unproven in terms of profitability and productivity . — Tobias Burns, CNBC, 9 Oct. 2026 If anything, the addition of unproven players could have been seen as reason for skepticism, reason to believe the carousel would continue. — Nicolas Villamil, The Orlando Sentinel, 8 Oct. 2026 Missouri sued him in March 2020 for pitching unproven products as a potential cure for COVID-19. — Charlotte Observer, 6 Oct. 2026 See All Example Sentences for unproven

Recent Examples of Synonyms for unproven

Adjective

That is sparking a whole industry that markets other peptides — largely unproved and untested — that are said to increase muscle growth, speed recovery and fight aging.

— Jonathan Fahey, Los Angeles Times, 18 Sep. 2026
But Starship still must demonstrate multiple unproved capabilities that are crucial to NASA’s plans—such as the in-space refueling, via multiple launches, that’s required for sending the vehicle out of low-Earth orbit to the moon.

— Lee Billings, Scientific American, 29 May 2026

Definition of unproved

Adjective

Wastewater applications remain untested The researchers envision placing future versions of the biobattery inside wastewater pipes, where microorganisms could use organic matter in the water as fuel.

— Neetika Walter, Interesting Engineering, 15 Oct. 2026
The law followed testimony from city officials and residents who said some smoke shops sell untested, unregulated and dangerous products, including to children.

— Bryan Lynn, CBS News, 15 Oct. 2026

Definition of untested

Adjective

What the records show As the investigation remains underway, CNN analysis has revealed alleged maintenance issues and guest injuries at several Six Flags parks.

— Isa Mudannayake, CNN Money, 17 Oct. 2026
The complaint continued to identify No One Ever Really Dies as a source of alleged damages that could exceed $1 million.

— Nancy Dillon, Rolling Stone, 17 Oct. 2026

Definition of alleged

Adjective

The author’s latest speculative dystopian fiction features parallel universes that explore alternate realities — and doppelgangers that stumble between the two.

— Emily St. Martin, Los Angeles Times, 12 Oct. 2026
The building, the paper said, reflected how big the speculative side of the oil trade had become.

— Brian C. Black, The Conversation, 9 Oct. 2026

Definition of speculative

Adjective

Farther from Tau Ceti, where the light was weaker, a hypothetical high-sensitivity camera could reveal them.

— Davide Abbatescianni, Variety, 18 Oct. 2026
In this approach, researchers come up with hypothetical scenarios based on existing technology trends, leaning into certain features.

— Lissa Soep, Vox, 17 Oct. 2026

Definition of hypothetical

Adjective

The proposed amendment, which will require the support of at least 94 of the 141 members of parliament to pass, would remove that provision.

— Sam Meredith, CNBC, 6 Oct. 2026
New agency gets broad powers The proposed Department of Artificial Intelligence would operate as a cabinet-level federal agency.

— Aamir Khollam, Interesting Engineering, 23 Sep. 2026

Definition of proposed

Browse Nearby Words

unproved

unproven

unpublishable

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“Unproven.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/unproven. Accessed 21 Oct. 2026.

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Synonyms of unproven

adjective

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