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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

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.

Unstoppable Mikaela Shiffrin and Swiss master Marco Odermatt headline the alpine skiing at the Winter Olympics, but doubts remain over comeback queen Lindsey Vonn, arguably one of the biggest names at the Milan-Cortina Games.

From Barron's • Feb. 4, 2026

Slamdance places particular emphasis on its Unstoppable program, a showcase for films made by filmmakers with visible and nonvisible disabilities.

From Los Angeles Times • Feb. 20, 2025

“The context surrounding what he said is missing,” said the Unstoppable Freedom Alliance account.

From Washington Times • May 31, 2023

Not since Denzel Washington starred in the 2010 thriller Unstoppable as a locomotive engineer who gains control of a runaway freight train, has there been such a daunting assignment.

From Salon • Dec. 2, 2022

The host rolled on then like a tide, Far, in a surging wave, it flowed Unstoppable through vale and wood, Advanced until the soldiers rode To Turaida where Kaupa stood.

From Bearslayer A free translation from the unrhymed Latvian into English heroic verse by Cropley, Arthur