INSURMOUNTABLE Synonyms: 44 Similar and Opposite Words

insurmountable

adjective

ˌin(t)-sər-ˈmau̇n-tə-bəl

Definition of insurmountable

as in insuperable

incapable of being defeated, overcome, or subdued the familiar story of the underdog who ultimately triumphs despite insurmountable odds

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 insurmountable Maybe your favorite wrestler finally overcomes insurmountable odds to become a world champion. — Ryan Gaydos Outkick, FOXNews.com, 2 Sep. 2026 But writing a memoir about her lifelong relationship with Freddie Mercury felt insurmountable. — Melissa Ruggieri, USA Today, 2 Sep. 2026 Everyone loses, particularly the regular citizens of both countries involved, who face sometimes insurmountable shocks to their businesses. — New York Daily News Editorial Board, New York Daily News, 31 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 See All Example Sentences for insurmountable

Recent Examples of Synonyms for insurmountable

Adjective

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

Definition of insuperable

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

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

To say that senior running back Jayden Schlosser is almost unstoppable for Oak Lawn would be an understatement.

— Patrick Z. McGavin, Chicago Tribune, 26 Sep. 2026
That was one of many factors that contributed to UM mustering just 26 yards on its final six possessions after the offense was again virtually unstoppable in the first half.

— Barry Jackson, Miami Herald, 19 Sep. 2026

Definition of unstoppable

Adjective

In Martinez’s versions, Mirabai is indomitable, sexy, exceedingly earnest, sometimes funny, always speaking at the border of body and spirit.

— Craig Morgan Teicher, Literary Hub, 1 Oct. 2026
The minute-long trailer for the film documenting late heavy metal icon Ozzy Osbourne‘s final show is packed with emotion, tension, tears and, of course, the indomitable spirit of the Blizzard of Ozz himself.

— Gil Kaufman, Billboard, 24 Sep. 2026

Definition of indomitable

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

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

Browse Nearby Words

insuring

insurmountable

insurrection

See all Nearby Words

Cite this Entry

Style

“Insurmountable.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/insurmountable. Accessed 5 Oct. 2026.

Copy Citation

Synonyms of insurmountable

adjective

Example Sentences

Browse Nearby Words

Cite this Entry

More from Merriam-Webster

Word of the Day

perseverate

Popular in Grammar & Usage

Do You Need a New Language Peeve?

More Commonly Mispronounced Words

Merriam-Webster’s Great Big List of Words You Love to Hate

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

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

Popular in Wordplay

7 Great Ways to Say 'Great'

The Longest Long Words List

9 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

Do You Need a New Language Peeve?

7 Great Ways to Say 'Great'

The Longest Long Words List

Games & Quizzes