[uhn-stop-uh-buh l]


that cannot be stopped or surpassed; unbeatable: an unstoppable ball team.

Origin of unstoppable

First recorded in 1830–40; un-1 + stoppable
Related formsun·stop·pa·bly, adverb
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for unstoppable

Contemporary Examples of unstoppable

Historical Examples of unstoppable

  • He felt as though he had been caught in the wheels of an unstoppable machine and was in vague but serious danger.

  • As that unstoppable globe descended through office after office, it neither sought out people nor avoided them.

    The Galaxy Primes

    Edward Elmer Smith

  • Even if she had excused me, the children would have raised an unstoppable howl, and probably would have followed us.

    Mary Ware in Texas

    Annie F. Johnston

  • The landlord, an unstoppable gramophone of garrulity, entering by the street-door and bearing down upon him, put him to flight.

British Dictionary definitions for unstoppable



not capable of being stopped; extremely forceful
Derived Formsunstoppably, adverb
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

Word Origin and History for unstoppable

1836; see un- (1) "not" + stop (v.) + -able.

Online Etymology Dictionary, © 2010 Douglas Harper