unproven

adjective

Definition of unprovennext
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 Do not introduce an unproven customer-facing AI workflow during peak season. — Michael Fox, Forbes.com, 2 Oct. 2026 For the rest of the industry, that could put the onus on an array of nascent technologies, from unproven launch vehicles to a troubled astronaut spacecraft under development by Boeing that previously malfunctioned with two NASA astronauts aboard. — Jackie Wattles, CNN Money, 30 Sep. 2026 The Mets let key clubhouse leaders go and replaced them with players who were unproven in the game’s toughest market. — Abbey Mastracco, New York Daily News, 28 Sep. 2026 Major hurdles remain, including radioactive-waste storage, high costs, unproven reactor designs and likely opposition from environmental groups and communities asked to host future facilities. — Giada Zampano, Los Angeles Times, 23 Sep. 2026 See All Example Sentences for unproven
Recent Examples of Synonyms for unproven
  1. unproved
  2. untested
  3. alleged
  4. speculative
  5. presumed
  6. hypothetical
  7. proposed
  8. conjectural
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 rest of the filmmaking, too, is content to coast at a lower difficulty setting, from the proficient but anonymously taupe lensing by master DP Robert Elswit to an untested ensemble of ever-watchable actors playing capably to type.
    — Guy Lodge, Variety, 8 Oct. 2026
  • Smaller banks may not be able to participate in the process and even large ones may initially be wary of untested new rules.
    — Matthew Martin, semafor.com, 2 Oct. 2026
Definition of untested
Adjective
  • Trump and his allies have also sued several media organizations, including The New York Times, The Wall Street Journal, and BBC News, over alleged biases or inaccuracies in their reporting.
    — Liz Napolitano, CNBC, 11 Oct. 2026
  • Geragos' motion comes days after another one of the men named in the civil suit filed a request in Albany State Supreme Court seeking James's removal, also citing alleged bias.
    — James Cirrone , Michael Ruiz, FOXNews.com, 10 Oct. 2026
Definition of alleged
Adjective
  • Under the concept True Dystopic, the #LINK Vertical program brings together auteur documentary and genre cinema, using real locations in Rio de Janeiro as settings for imagining speculative futures.
    — Rafa Sales Ross, Variety, 6 Oct. 2026
  • The governor, who is up for reelection in November, said speculative proposals to build data centers had swamped Pennsylvania.
    — Salena Zito, Washington Post, 6 Oct. 2026
Definition of speculative
Adjective
  • The presumed reasoning behind why the film was ignored is multilayered.
    — Marcus Jones, IndieWire, 8 Aug. 2025
Definition of presumed
Adjective
  • This specific scenario is still hypothetical, but in general, mapmakers using their powers to litigate factional and personal grievances isn’t hard to imagine.
    — Jon Allsop, New Yorker, 10 Oct. 2026
  • Lawyers had to mark up a hypothetical patent that, according to the blog post, contained many substantive and stylistic errors.
    — Nick Lichtenberg, Fortune, 10 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
Adjective
  • The first two questions are too hypothetical and conjectural.
    — Baltimore Sun staff, Baltimore Sun, 20 May 2026
  • Projections of economic gains from major sporting events are typically optimistic, euphoric, chimerical or conjectural.
    — Michael Hiltzik, Los Angeles Times, 19 June 2025
Definition of conjectural

Browse Nearby Words

unproved
unproven
unpublishable
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Cite this Entry

“Unproven.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/unproven. Accessed 15 Oct. 2026.

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