unstoppable

adjective

un·​stop·​pa·​ble ˌən-ˈstä-pə-bəl 

: incapable of being stopped

an unstoppable runaway truck

an unstoppable army

an unstoppable rise to power

unstoppably

ˌən-ˈstä-pə-blē 

adverb

Synonyms of unstoppable

• invincible
• indomitable
• unbeatable
• insurmountable
• unconquerable
• invulnerable
• impregnable
• undefeated
• bulletproof
• armored

Examples of unstoppable in a Sentence

At this point in the campaign, he appears to be unstoppable.

at this point she's so far ahead in the polls that she's unstoppable

Recent Examples on the Web

The once unstoppable athletic titan expects more layoffs in 2027 after already cutting staff twice this year. — Matt Calkins Outkick, FOXNews.com, 5 Oct. 2026

The unstoppable American consumer is running through their savings. — Jim Edwards, Fortune, 2 Oct. 2026

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

Word History

First Known Use

1836, in the meaning defined above