INSUPERABLE Synonyms: 114 Similar and Opposite Words

insuperable

adjective

(ˌ)in-ˈsü-p(ə-)rə-bəl

Definition of insuperable

as in insurmountable

incapable of being defeated, overcome, or subdued the building project ran into insuperable financial difficulties and had to be scrapped

Synonyms & Similar Words

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Antonyms & Near Antonyms

as in impossible

incapable of being solved or accomplished insuperable problems have arisen which make it very unlikely that we will ever finish this project

Synonyms & Similar Words

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 insuperable Orban succeeded in this enterprise to what seemed like an insuperable level. — Melik Kaylan, Forbes.com, 28 Apr. 2026 Raise the stakes, place insuperable obstacles before the protagonist, have the protagonist somehow surmount them while becoming braver and better. — Adam Gopnik, New Yorker, 9 June 2025 Television’s tendency to play down to the masses — manipulating our individual needs for attention, for agreement, or simply to win — is an insuperable problem at this particular, shameless moment in pop culture. — Armond White, National Review, 16 Oct. 2024 This attitude, although understandable, creates an insuperable barrier to creating a better policy. — Alan S. Blinder, Foreign Affairs, 11 Dec. 2018 See All Example Sentences for insuperable

Recent Examples of Synonyms for insuperable

Adjective

Addressing the issue remains a seemingly insurmountable task.

— Victor Tangermann, Futurism, 20 Aug. 2026
Wahab had 51,610 votes to Hernandez’s 45,598, an insurmountable margin with just 255 ballots left to cure.

— Kyle Martin, Mercury News, 20 Aug. 2026

Definition of insurmountable

Adjective

Elwood told his boss – Peter Brown, a former member of the Beatles’ inner circle and the founder of Brown Lloyd James – that the assignment was impossible.

— Rob Picheta, CNN Money, 30 Aug. 2026
Such components can benefit from additive manufacturing because the technology lets engineers create geometries that would be difficult or impossible to produce with traditional manufacturing methods.

— Kaif Shaikh, Interesting Engineering, 29 Aug. 2026

Definition of impossible

Adjective

The rescue party made its way to New York harbor by train, private car, and then two bicycles shared among the three of them—Frank, Sarah’s husband, on one; Sarah and Billo on the other—when shipyard traffic proved unconquerable by automobile.

— Claire Carusillo, Harpers Magazine, 4 Aug. 2026
The Spurs led for more minutes than the Knicks and built seemingly unconquerable leads.

— Dana O’Neil, CNN Money, 14 June 2026

Definition of unconquerable

Adjective

This latest attempt to move, a hopeless punt to have his contract annulled in order to leave on a free sooner, will likely see anger return at Selhurst Park on Friday night against Manchester City.

— Matt Woosnam, New York Times, 25 Aug. 2026
Ever the hopeless romantic, Ted searches for the love of his life through a constant series of twists, turns, diversions, blue French horns, slap bets, and yellow umbrellas.

— Skyler Trepel, Entertainment Weekly, 20 Aug. 2026

Definition of hopeless

Adjective

Dropped catches from Steve Smith, Green and Travis Head ensured yesterday's brief rally in the field fizzled out and allowed Bangladesh to bat itself into an almost impregnable position.

— ABC News, ABC News, 14 Aug. 2026
The shell of a good- sized adult abalone is more or less impregnable to most of the kelp forest’s predators, too strong and too thick for penetration.

— Literary Hub, Literary Hub, 29 July 2026

Definition of impregnable

Adjective

Rooms could use some updating, but the Roppongi location—seemingly 20 minutes away from all of Tokyo’s attractions—is unbeatable.

— Condé Nast, Condé Nast Traveler, 25 Aug. 2026
My collection includes affordable Amazon basics , elevated Aritzia picks, unbeatable Nordstrom deals, and more, all of which will fit effortlessly into my suitcase (and are now shoppable in one place).

— Merrell Readman, Travel + Leisure, 24 Aug. 2026

Definition of unbeatable

Adjective

Google also doesn’t claim that SynthID is invulnerable—the original paper on the technology notes that the watermark is not intended to withstand adversarial attacks.

— ArsTechnica, ArsTechnica, 29 July 2026
For Ross, this gives the character a steadier presence than the standard invulnerable operative often found in genre fiction.

— Matt Emma, USA Today, 29 July 2026

Definition of invulnerable

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in sum

insuperable

insupportable

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“Insuperable.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/insuperable. Accessed 2 Sep. 2026.

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Synonyms of insuperable

adjective

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