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Synonyms

unstoppable

American  
[uhn-stop-uh-buhl] / ʌnˈstɒp ə bəl /

adjective

  1. that cannot be stopped or surpassed; unbeatable.

    an unstoppable ball team.
unstoppable British  
/ ʌnˈstɒpəbəl /

adjective

  1. not capable of being stopped; extremely forceful

"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

Other Word Forms

  • unstoppably adverb

Etymology

Origin of unstoppable

First recorded in 1830–40; un- 1 + stoppable

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.

With a dazzling array of unstoppable female characters, Taylor Sheridan’s ‘1923’ is the show every adult American Girl doll fan should be watching.

From Los Angeles Times • Mar. 1, 2026

“She’s powerful the way that water is flowing and it’s light, but it’s unstoppable and effervescent,” says award-winning actor Oscar Isaac.

From Los Angeles Times • Feb. 27, 2026

South Korean filmmakers generally accept generative AI as an unstoppable trend, if not a silver bullet that could save an industry beleaguered by rising costs.

From BBC • Feb. 27, 2026

Nvidia beat earnings expectations as it continues on its seemingly unstoppable trajectory, as CEO Jensen Huang noted demand for compute power is growing “exponentially” as companies adopt agentic AI.

From Barron's • Feb. 26, 2026

But she is unstoppable, so I jerk upright.

From "Water for Elephants" by Sara Gruen

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.