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 Georgia Tech in 2001 broke ground on an ambitious — and unproven — plan to to transform eight blocks of derelict lots in Midtown into an academic and corporate hub. — Zachary Hansen, AJC.com, 18 Sep. 2026 Hollywood has long been a petri dish of nasty rumors, and throughout its history, several unproven, or unprovable, salacious stories about movie stars have taken on lives of their own. — Julian Sancton, HollywoodReporter, 17 Sep. 2026 Now, the talented but unproven netminder has a tremendous opportunity. — Jesse Granger, New York Times, 15 Sep. 2026 Fins have the youngest roster in the league, and will rely on the unproven Willis being really good, on the young players developing fast with a few stars emerging, and on future draft picks stockpiled in the rebuild. — Miami Herald, 11 Sep. 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

However, many security leaders are deploying unproven, untested agentic solutions to production environments without validating how those agents interact with their networks, data or human operators.

— Lee Rossey, Forbes.com, 24 Sep. 2026
The project might have ended there had Kurin not made contact with a few previously untested Hemings descendants.

— Julian Lucas, New Yorker, 21 Sep. 2026

Definition of untested

Adjective

Maduko’s behavior, as described in the report, appears to have grown increasingly aggressive in his alleged harassment of women in the CSCU system.

— Kevin Rennie, Hartford Courant, 26 Sep. 2026
The government says some alleged co-conspirators remain at large in Venezuela and are capable of violence and witness intimidation, raising the possibility that Flores could direct others to act on her behalf if released.

— Antonio María Delgado, Miami Herald, 25 Sep. 2026

Definition of alleged

Adjective

That ultimately became Exit Party, a speculative story about a dystopian not-so-distant future in which the government of the United States has collapsed and Los Angeles has become something of a refugee camp from the latent civil war.

— Seija Rankin, HollywoodReporter, 23 Sep. 2026
With two more elections going against the CDU, and Merz’s popularity plunging, that assessment seems less speculative.

— Sebastian Shukla, CNN Money, 21 Sep. 2026

Definition of speculative

Adjective

Hinton offered a hypothetical scenario of an AI tasked with reducing carbon dioxide in the atmosphere.

— Jason Ma, Fortune, 26 Sep. 2026
Some proponents contend that emphasizing existential threats from a hypothetical future superintelligence can serve as a distraction from the more immediate harms and accountability issues surrounding AI today.

— Katie McQue, NPR, 26 Sep. 2026

Definition of hypothetical

Adjective

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
The proposed Department of Neighborhood Safety is modeled after a program in Durham, North Carolina.

— Mike Hellgren, CBS News, 14 Sep. 2026

Definition of proposed

Browse Nearby Words

unproved

unproven

unpublishable

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Style

“Unproven.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/unproven. Accessed 30 Sep. 2026.

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Synonyms of unproven

adjective

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