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Definitions

stop-at-nothing

ADJECTIVE
indefatigable
Synonyms
STRONGEST
assiduous diligent dogged energetic inexhaustible painstaking relentless tireless unflagging unwavering vigorous
WEAK
active bound and determined dead set on determined hell-bent industrious ironclad nose to grindstone patient persevering persistent pertinacious sedulous steadfast strenuous unfaltering unflinching unremitting unwearied unwearying
Antonyms
STRONGEST
changing idle inactive indifferent lazy lethargic negligent tired wavering
WEAK
fatigued weary
ADJECTIVE
relentless
Synonyms
STRONGEST
determined dogged ferocious fierce harsh implacable inexorable rigorous ruthless single-minded uncompromising unforgiving unrelenting unstoppable 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 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
unprincipled
Synonyms
STRONGEST
amoral deceitful dishonest immoral unconscionable unethical unprofessional unscrupulous
WEAK
abandoned bent cheating conscienceless crooked devious dirty dealing dissolute double-crossing double-dealing licentious mercentary praetorian profligate reprobate shady sly tricky two-faced two-timing underhand venal wanton
Antonyms
STRONGEST
ethical frank good honest moral open principled right scrupulous trustworthy truthful upright

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.

Audi unveiled a slogan for their new project: "To start something, stop at nothing."

From BBC • Jan. 20, 2026

For Pam’s ex-husband, Doug Sullivan, money is a game to be played in order to get what he wants, and he will stop at nothing to get it.

From Los Angeles Times • Jun. 19, 2025

They desperately need a center, and when the Lakers desperately need something, they will stop at nothing to get it.

From Los Angeles Times • May 11, 2025

He would stop at nothing to see Ozy succeed.

From Slate • Dec. 12, 2024

Marco is coming and he’ll stop at nothing.

From "The Boy Who Met a Whale" by Nizrana Farook

From Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.