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Synonyms

unproven

British  
/ ʌnˈpruːvən /

adjective

  1. not established as true by evidence or demonstration

    unproven allegations

  2. (of a new product, system, treatment, etc) not tried or tested

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

But as attractive as they sound, SMRs are viewed as unproven at commercial scale.

From BBC • Apr. 3, 2026

And during oral arguments in January, both the liberal and conservative flanks of the court expressed doubts in the government’s claim that Trump could oust Cook on the basis of an unproven allegation.

From Slate • Mar. 19, 2026

It said the suit centers on "extremely serious, though unproven, allegations against the American technology firm."

From Barron's • Mar. 10, 2026

The records contained unproven accusations of wrongdoing by Trump, which he has denied.

From Los Angeles Times • Feb. 25, 2026

In their people’s eyes, Ekon was still just an unproven boy.

From "Beasts of Prey" by Ayana Gray

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.