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

But complex, long-term construction projects can change drastically, or face insurmountable roadblocks, over their development cycles.

— Kevin Breuninger, CNBC, 28 Sep. 2026
Austria made the Final 8 after Jurji Rodionov beat Belgium’s Zizou Bergs 7-6, 6-3 to build an insurmountable 3-1 advantage.

— ABC News, ABC News, 19 Sep. 2026

Definition of insurmountable

Adjective

The technique has revolutionized neuroscience by opening up the brain's activity to scientists in ways previously impossible.

— Jackie Flynn Mogensen, Scientific American, 5 Oct. 2026
These Chargers have 13 games left, and identifying potential wins on the remaining schedule is a nearly impossible task.

— Los Angeles Times, Los Angeles Times, 5 Oct. 2026

Definition of impossible

Adjective

But the advent of NIL has turned the gap into an unconquerable chasm.

— Dana O’Neil, CNN Money, 6 Sep. 2026
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

Definition of unconquerable

Adjective

For example, compared to young men, young women who completed the survey were about twice as likely to have felt persistently sad and hopeless, had poor mental health, seriously considered suicide or attempted suicide.

— Crystal Cederna, The Conversation, 25 Sep. 2026
Cregger uses first-person-shooter point-of-view shots, with the long barrel of a rifle or automatic weapon lining up our sights; one running gag sees Bryan, completely hopeless with guns, having to shoot the locks off of gates.

— Katie Walsh, Los Angeles Times, 18 Sep. 2026

Definition of hopeless

Adjective

Hearing Ryan talk about particularly the metaphor for AIDS and what AIDS meant to him, and that AIDS was quite literally a thing killing beautiful young people in the ‘80s; people who felt untouchable and invincible.

— Jackie Strause, HollywoodReporter, 10 Sep. 2026
Cameron keeps upping the ante, until one becomes convinced the T-1000 is well-nigh invincible.

— ArsTechnica, ArsTechnica, 28 Aug. 2026

Definition of invincible

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

The Anker Soundcore 2 sets the gold standard for budget portable audio, combining solid stereo clarity with an unbeatable 24-hour battery life.

— Juhi Wadia, PC Magazine, 29 Sep. 2026
The property combines centuries of history with chic interiors, excellent service, and an unbeatable location, mere steps away from Zurich’s central hub and iconic shops.

— Condé Nast, Condé Nast Traveler, 25 Sep. 2026

Definition of unbeatable

Adjective

Why does Gleb discount the power of those words and feel himself invulnerable?

— Deborah Treisman, New Yorker, 27 Sep. 2026
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

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 6 Oct. 2026.

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Synonyms of insuperable

adjective

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