UNQUESTIONABLE Synonyms: 57 Similar and Opposite Words

unquestionable

adjective

ˌən-ˈkwes-chə-nə-bəl

Definition of unquestionable

as in undeniable

not capable of being challenged or proved wrong a person of unquestionable integrity

Synonyms & Similar Words

Relevance

Antonyms & Near Antonyms

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 unquestionable Jones is walking in this current season of her life holding both grief and gratitude and doing it with unquestionable grace. — Essence, 4 May 2026 Orbán’s grip on power, unquestionable for a decade and a half, suddenly looked vulnerable. — Andrew Marantz, New Yorker, 13 Apr. 2026 Hearts have melted online after a scared rescue dog bravely faced her fear in order to join her owner, with many viewers praising her unquestionable courage and determination. — Alyce Collins, MSNBC Newsweek, 30 Mar. 2026 Growing tensions While his legacy is unquestionable, his departure from Liverpool is perhaps overdue and, like any relationship, there have been blips. — Ben Church, CNN Money, 25 Mar. 2026 See All Example Sentences for unquestionable

Recent Examples of Synonyms for unquestionable

Adjective

Fast forward to this season, and the Coyotes have undeniable momentum under third-year head coach Jeff Santee.

— Kyle Newman, Denver Post, 27 Aug. 2026
Cher said Parton just had a way of connecting with people that was undeniable.

— Leigh Blickley, Entertainment Weekly, 26 Aug. 2026

Definition of undeniable

Adjective

As a result, mathematical truths do not make up a unified whole of equally indubitable truths; instead, their status as knowledge varies gradually from doubtless facts to increasingly uncertain hypotheses.

— Quanta Magazine, Quanta Magazine, 18 May 2026
The second route, and the route that makes indubitable sense, entails using the techniques and methods of psychology to gauge the performance of AI.

— Lance Eliot, Forbes.com, 15 Apr. 2026

Definition of indubitable

Adjective

Reporting on the Holocaust tested Grossman’s attention to character, replacing the gray zone of Soviet morality with irrefutable villains and victims.

— Madeleine Wulfahrt, New Yorker, 8 July 2026
Organizations that embed deep, scientific inquiry into their commercial DNA can not only disrupt existing markets but also engineer entirely new ones based on the irrefutable laws of physics.

— Alexandra Vidyuk, Forbes.com, 12 June 2026

Definition of irrefutable

Adjective

Funnyman, vulgarian, auteur — Mel Brooks’s imprint on American cinema is incontestable yet scandalously undervalued.

— Manohla Dargis, New York Times, 26 June 2026
The mark was federally registered in 2015 and has since achieved incontestable status, a legal designation that strengthens ownership rights.

— Bryan West, USA Today, 30 Mar. 2026

Definition of incontestable

Adjective

Yet despite these unarguable facts, the direction of the animation world lately has been decidedly pro-Shrek and anti–French rat.

— Jason P. Frank, Vulture, 26 June 2026
But the unarguable fact is that the federal government would be providing less money to pay for health care for the roughly 72 million Americans on Medicaid.

— Nicholas Kristof, The Mercury News, 11 Mar. 2025

Definition of unarguable

Adjective

That is what’s decreed by the Premier League, which reviews each incident and only wants players to be sent off if there is incontrovertible evidence that the referee had no choice.

— Graham Scott, New York Times, 25 Aug. 2026
By slow degrees, Philip’s story shifts to accommodate the incontrovertible evidence of IP addresses and deciphered cryptography and Lucy struggles to keep up, let alone understand.

— Leslie Felperin, HollywoodReporter, 15 May 2026

Definition of incontrovertible

Adjective

Metagenomic testing on blood samples, which is also becoming more common, is not always conclusive; localized infections don’t always reach the bloodstream.

— Jason Liebowitz, New Yorker, 25 Aug. 2026
Officials concluded that the video did not offer conclusive proof that a person fell off the ship.

— Curran Rastogi, ABC News, 24 Aug. 2026

Definition of conclusive

Browse Nearby Words

unquenchable

unquestionable

unquestionably

See all Nearby Words

Cite this Entry

Style

“Unquestionable.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/unquestionable. Accessed 1 Sep. 2026.

Copy Citation

Synonyms of unquestionable

adjective

Example Sentences

Browse Nearby Words

Cite this Entry

More from Merriam-Webster

Word of the Day

conscientious

Popular in Grammar & Usage

A Who’s Who Regarding ‘Who’s’ and ‘Whose’

Is it 'nerve-racking' or 'nerve-wracking'?

What's the difference between 'fascism' and 'socialism'?

Why does English have so many silent letters?

7 Pairs of Commonly Confused Words

Popular in Wordplay

Ye Olde Nincompoop: Old-Fashioned Words for 'Stupid'

14 Phobias You Probably Haven't Heard Of

Even More Words That Sound Like Insults But Aren't

Even More Bird Names that Sound Like Insults (and Sometimes Are)

12 Lovely and Unusual Words for the Natural World

Popular

A Who’s Who Regarding ‘Who’s’ and ‘Whose’

Ye Olde Nincompoop: Old-Fashioned Words for 'Stupid'

14 Phobias You Probably Haven't Heard Of

Games & Quizzes