Thesaurus.com
Dictionary.com
Definitions

relentlessly

[ri-lent-lis-lee] / rɪˈlɛnt lɪs li /
ADVERB
ad infinitum
Synonyms
WEAK
at length continuously endlessly forever having no end in perpetuity interminably never-ending on and on perpetually unlimitedly without end without limit
ADVERB
away
Synonyms
WEAK
endlessly forever incessantly interminably on and on repeatedly tirelessly unremittingly without break without end without rest without stopping
ADVERB
brutally
Synonyms
STRONGEST
ferociously fiercely mercilessly ruthlessly savagely viciously
WEAK
atrociously barbarically barbarously brutishly callously demoniacally diabolically ferally hardheartedly heartlessly in cold blood inexorably inhumanely inhumanly meanly murderously pitilessly remorselessly something fierce something terrible unkindly unrelentingly
Antonyms
WEAK
gently humanely kindly nicely
ADVERB
ever
Synonyms
STRONGEST
consistently constantly continually forever regularly usually
WEAK
anytime at all at all times at any point by any chance endlessly eternally everlastingly evermore for keeps in any case in perpetuum incessantly invariably on any occasion perpetually till cows come home to the end of time unceasingly unendingly
ADVERB
hard
Synonyms
STRONGEST
heavily seriously strongly vigorously
STRONG
severely
WEAK
actively angrily animatedly boisterously briskly brutally cruelly earnestly energetically ferociously fiercely forcibly frantically furiously intensely keenly like fury madly meanly painfully powerfully rigorously roughly rowdily savagely sharply spiritedly sprightly stormily tumultuously turbulently uproariously urgently viciously violently vivaciously wildly with all one's might
Antonyms
STRONGEST
lightly
WEAK
easily gently moderately softly tolerantly yielding
ADVERB
on and on
Synonyms
WEAK
ad nauseam constantly continuously forever never-ending perpetually relentless repeatedly steadily time after time time and time again unceasingly uninterruptedly unremitting unremittingly without a break without stopping

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.

The band toured relentlessly in the Midwest, playing five sets a night, six days a week.

From Los Angeles Times • Apr. 17, 2026

“There was no quieting him,” Eleni, 62, said, noting the dog barked relentlessly for several minutes.

From Los Angeles Times • Apr. 17, 2026

Fu Sheng, chief executive of Cheetah Mobile, relentlessly shared how he "raised his lobster" on social media - a phrase users adopted to describe training the assistant for their requirements.

From BBC • Apr. 5, 2026

It relentlessly moves forward independent of a person’s actions or desires.

From Salon • Mar. 27, 2026

Shusgis talked and talked to me and to the many employees, aides, and sycophants who sat down at his table nightly; I had never known him so longwinded, so relentlessly jovial.

From "The Left Hand of Darkness" by Ursula K. Le Guin