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

But then grandparents started using email to communicate with their grandkids and the wave became unstoppable. — Robbie Morrison, Forbes.com, 4 Aug. 2026

Decades into her career, Shakira remains an unstoppable force — and her current streaming success proves it. — Maya Georgi, Rolling Stone, 27 July 2026

By 2019, Willis was signed to the Motley Models agency and beginning her unstoppable rise to the top of the industry. — Gustavo Turner, HollywoodReporter, 24 July 2026

In our imagined scenario in which the Chargers are an unstoppable fantasy machine in 2026, Mitchell will be cartoonishly good. — Andy Behrens, New York Times, 21 July 2026

Word History

First Known Use

1836, in the meaning defined above