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 In the early weeks of the COVID-19 pandemic, the death toll had climbed to 200, thousands had become sick and the president was touting unproven treatments. — Martha Ross, Mercury News, 7 Aug. 2026 In Congress, Republicans aimed at Fauci more frequently and pushed the unproven theory that the coronavirus was created at a lab in Wuhan, China, instead of spreading from animal to human, as Fauci believed. — Michael Collins, USA Today, 7 Aug. 2026 There are also lots of less-than-ethical influencers who are looking to make a quick buck on unproven supplements and vitamins. — Mara Gordon, NPR, 7 Aug. 2026 Technology runs their business like never before, but AI is unfamiliar, unproven and risky, creating massive amounts of uncertainty. — James Loffler, Forbes.com, 6 Aug. 2026 See All Example Sentences for unproven

Recent Examples of Synonyms for unproven

Adjective

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
When gambling becomes the norm, taking risks in unproved investment channels start to look reasonable.

— Kyle Chayka, New Yorker, 20 May 2026

Definition of unproved

Adjective

Rydell insisted that Midler — then an untested actress known for her prowess as a nightclub singer — be cast as the Janis Joplin-like rocker Mary Rose Foster in The Rose.

— Mike Barnes, HollywoodReporter, 14 Aug. 2026
This would mean an untested system would be used on election day.

— Dana Taylor, USA Today, 11 Aug. 2026

Definition of untested

Adjective

Now, the former governor of the state of Guerrero has been formally charged over his alleged involvement, after a judge ruled that Mexico’s attorney general had sufficient evidence to proceed.

— Harriet Marsden, TheWeek, 17 Aug. 2026
Conviser also accused the school’s then-athletic director Jean Lenti Ponsetto—Eugene Lenti’s sister—of protecting him from a Title IX investigation into his alleged misconduct.

— Daniel Libit, Sportico.com, 17 Aug. 2026

Definition of alleged

Adjective

Her work often blends documentary research with speculative fiction to explore technology, institutions, and cultural memory.

— Daniel Cassady, ARTnews.com, 13 Aug. 2026
Many millennial and Gen Z collectors also view collector cars as speculative trades rather than long-term stores of value.

— Robert Frank, CNBC, 13 Aug. 2026

Definition of speculative

Adjective

In a hypothetical head-to-head matchup as seen in a survey from the University of North Florida, Donalds is leading Jolly by 5 points.

— David Zimmermann, The Washington Examiner, 16 Aug. 2026
Senhu Wang and Heejung Chung found that managers rate remote workers worse on commitment, productivity, team spirit and promotion opportunities, even when the hypothetical employees worked remotely only two to three days per week.

— Gleb Tsipursky, Washington Post, 14 Aug. 2026

Definition of hypothetical

Adjective

Ellison believes the proposed Warner merger is the best way to save Hollywood, saying the combination of two storied studios would strengthen not harm the film industry.

— Meg James, Los Angeles Times, 12 Aug. 2026
The proposed 1,800-square-foot shop would also have a dry storage area and 230-square-foot cooler.

— Tanasia Kenney, Charlotte Observer, 31 July 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 19 Aug. 2026.

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Synonyms of unproven

adjective

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