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 But his sense of adventure and generosity led him deep into the woods of Oregon with a bunch of kids and an unproven director to experience something very special. — Alejandra Gularte, Vulture, 29 Oct. 2026 At a meeting in July, FDA staffers reiterated that more than a half-dozen peptides brought forward for reconsideration remained unproven in terms of safety and effectiveness. — ABC News, 28 Oct. 2026 Wellness influencers and some clinicians have promoted unproven peptides for a wide range of uses, though the evidence for their safety and effectiveness is sparse. — Sydney Lupkin, NPR, 28 Oct. 2026 This idea, also fueled by the president’s unproven assertion that the 2020 election was stolen from him, has propelled numerous efforts to require proof of citizenship or identity at the polls or when registering to vote. — Sharon Bernstein, Sacbee.com, 26 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

The powder tested so far turned out to be yeast or flour, but some letters remain untested; the mailings prompted evacuations at election offices in Louisiana and Oklahoma.

— Ed White, Los Angeles Times, 3 Nov. 2026
There is nothing comparable to these laws in Alaska, however, and whether laws like this could prevent this type of thing in a federal election is still untested.

— Drew Kurlowski, The Conversation, 30 Oct. 2026

Definition of untested

Adjective

Polish police confirmed to ABC News that the three people found dead in the alleged attacker’s apartment in Ostrowiec Swietokrzyski were his 53-year-old father, 52-year-old mother and 21-year-old sister.

— Dragana Jovanovic, ABC News, 8 Nov. 2026
More problematic is the long history of alleged involvement of deputy gangs in violence, intimidation and other potentially criminal behavior.

— Connor Sheets, Los Angeles Times, 6 Nov. 2026

Definition of alleged

Adjective

These smaller upstart computing providers are more speculative bets on the AI boom, with weaker balance sheets than the incumbent megacaps.

— Kevin Stankiewicz, CNBC, 4 Nov. 2026
She may have been sold to an out-of-state game farm, said sources who spoke to Outdoor Life on the condition that they wouldn’t be identified based on the speculative nature of their hunches.

— Andrew McKean, Outdoor Life, 29 Oct. 2026

Definition of speculative

Adjective

The Supreme Court Despite being asked several times on the campaign trail—thanks to the vacancy left by Antonin Scalia in February 2016—Clinton never revealed her hypothetical pick for late justice’s Supreme Court seat.

— Hugh Cameron, MSNBC Newsweek, 8 Nov. 2026
Often called Planet Nine—poking fun at professional astronomers’ 2006 demotion of Pluto from being the solar system’s ninth planet—this hypothetical body’s existence has been hotly debated, though that hasn’t slowed the search.

— Phil Plait, Scientific American, 6 Nov. 2026

Definition of hypothetical

Adjective

Eleven communities and a forest preserve would be affected by the proposed route, and residents in each deserve a meaningful voice in the process.

— Chicago Tribune, Chicago Tribune, 2 Nov. 2026
The proposed Department of Neighborhood Safety would send mental health professionals and other civilian responders to certain nonviolent 911 calls while absorbing the city’s existing violence prevention programs.

— Chevall Pryce, Baltimore Sun, 27 Oct. 2026

Definition of proposed

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unproved

unproven

unpublishable

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“Unproven.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/unproven. Accessed 11 Nov. 2026.

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Synonyms of unproven

adjective

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