Definitions

unstoppable

[uhn-stop-uh-buhl] / ʌnˈstɒp ə bəl /

ADJECTIVE

irrepressible

Synonyms

STRONGEST

boisterous buoyant ebullient exuberant rebellious uncontrollable unrestrained

WEAK

bubbling bubbly enthusiastic inextinguishable insuppressible rhapsodical unconstrained uncontainable unmanageable unquenchable unrestrainable unruly

Antonyms

STRONGEST

controllable restrained

WEAK

depressed despondent grave

ADJECTIVE

relentless

Synonyms

STRONGEST

determined dogged ferocious fierce harsh implacable inexorable rigorous ruthless single-minded uncompromising unforgiving unrelenting unyielding

WEAK

adamant bound bound and determined dead set on go for broke grim hang in hang-tough hard inflexible inhuman mortal obdurate pitiless remorseless rigid stiff stop-at-nothing strict stringent unappeasable unbending undeviating unflinching vindictive

Antonyms

STRONGEST

compassionate easy flexible gentle irresolute kind lenient merciful mild nice nonviolent peaceful remorseful sympathetic tame tender yielding

WEAK

ending intermittent stopping understanding

ADJECTIVE

relentless

Synonyms

STRONGEST

incessant nonstop persistent punishing sustained tenacious unflagging unrelenting unremitting

WEAK

pertinacious unabated unbroken unfaltering unrelieved

Antonyms

STRONGEST

intermittent relenting surrendering yielding

WEAK

ending kind merciful stopping sympathetic understanding

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.

In a speech at the summit, Macron also said that the process of returning African artworks looted during the colonial era had become "unstoppable".

From Barron's • May 11, 2026

You watch Embiid when he’s humming and you’re like: Jeez, this guy may be the most unstoppable player in the sport.

From The Wall Street Journal • May 4, 2026

The striker's unstoppable penalty gave Forest a narrow first-leg lead in their Europa League semi-final tussle with Aston Villa on Thursday.

From BBC • Apr. 30, 2026

And so he continues bursting his way through life as both an unstoppable force and an immovable object.

From BBC • Apr. 24, 2026

The unstoppable rise of the Mona Lisa is a centuries-long saga.

From "The Mona Lisa Vanishes" by Nicholas Day

unstoppable

Example Sentences

Related Words