relentlessly

re·lent·less·ly
R1E1L1E1N1T1L1E1S1S1L1Y4
UK/ɹɪˈlɛntləsli/Canada, US/ɹəˈlɛn(t)ləsli/Canada, US/ɹi-/Australia/ɹɪˈlentləsli/

adverb

In a manner unrelenting or unyielding in severity; unrelentingly.

“Near-synonyms: harshly, pitilessly, ruthlessly”

Less commonScrabble 15

Meanings

adverbrelentlessly (comparative more relentlessly, superlative most relentlessly)

comparative more relentlessly · superlative most relentlessly

  1. In a relentless manner.
    1. In a manner unrelenting or unyielding in severity; unrelentingly.

      Near-synonyms: harshly, pitilessly, ruthlessly

      2 more examples

      For sleep, he knew, kept most relentlessly / Its precious charge, and silent death exposed, / Faithless perhaps as sleep, a shadowy lure, / With doubtful smile mocking its own strange charms.

      1815 September 10 – December 14, Percy Bysshe Shelley, “Alastor; or, The Spirit of Solitude”, in Alastor; or, The Spirit of Solitude: And Other Poems, London: […] Baldwin, Cradock, and Joy, […]; and Carpenter and Son, […] [b]y S[amuel] Hamilton, […], published 1816, →OCLC, page 21

      He said gardaí had responded professionally to "thuggish violence" in the area and those arrested would be "charged, named and dealt with relentlessly" by the criminal justice system.

      2025 October 22, PA Media, quoting Jim O’Callaghan, “Second night of unrest in Dublin as protesters target asylum hotel”, in Katharine Viner, editor, The Guardian, London: Guardian News & Media, →ISSN, →OCLC, archived from the original on 06 Dec 2025

      Synonyms: harshly, pitilessly, ruthlessly · Antonyms: unrelentlessly

    2. In a steady and persistent manner; unceasingly.

      The vision must be shared. The leadership team must believe in it and pursue it relentlessly, along with the leader herself.

      2022, Gary A. Garfield, “Vision: Lesson #2”, in Driving Results: Six Lessons Learned from Transforming an Iconic Company, Hoboken, N.J: John Wiley & Sons, →ISBN, part II (The Six Lessons for Change), page 105
      1 more example

      My friend is one of thoſe people, vvho having formerly cut a very gay figure in the vvorld, is ſtill ambitious of ſpreading the May-bloom of tvventy-five upon the vvinter of threeſcore; and deſirous of diſplaying in the fulneſs of his ſpirits, that ſprightlineſs and vivacity vvhich time has relentleſsly taken from his perſon: […]

      1763? April 2, [Hugh Kelly], “Saturday, April 2 [1763?]”, in The Babler. Containing a Careful Selection from those Entertaining and Interesting Essays, […], volume I, number LXI, London: […] J[ohn] Newbery, […]; L. Hawes, W. Clarke, and R. Collins, […]; and J[ames] Harrison, […], published 1767, →OCLC, page 265

      Synonyms: unremittingly, ceaselessly, consecutively, constantly, continently, continually, continuously, endlessly · Antonyms: unrelentlessly

Synonyms & antonyms

adverbIn a manner unrelenting or unyielding in severity; unrelentingly.

More synonyms by meaning

adverbin a relentless manner

Synonym sets from Open English WordNet, CC BY 4.0.

Origin

  1. Proto-Indo-European*lentos“pliant; soft; smooth”
  2. Latinlentus“slow, sluggish”
  3. Old Frenchalentir
  4. Middle Frenchralenter
  5. Anglo-Normanrelenter
  6. Middle Englishrelenten“to melt; to soften; to dissolve in water; of weather: to be cool and moist”
  7. Englishrelentlessly

From relentless + -ly (suffix forming abverbs from adjectives and nouns). Relentless is derived from relent (“(noun) act of relenting or giving way, yielding; (verb) to become less cruel or harsh; to become less intense”) + -less (suffix meaning ‘lacking, without’); and relent from Middle English relenten (“to melt; to soften; to dissolve in water; of weather: to be cool and moist”), from Anglo-Norman relenter, relentir (“to melt; to shrivel; to give up; to slacken”), and also influenced by Middle French ralenter, ralentir (“to abate; to slow down”) (modern French ralentir), from re- (prefix meaning ‘again’ having intensifying effect) + alenter, alentir (“to slow down”) (from Old French alentir, from a- (prefix denoting entering a state or progressing towards a goal) + lent (“slow”) (from Latin lentus (“slow, sluggish”), possibly ultimately from Proto-Indo-European *lentos (“pliant; soft; smooth”)) + -ir (suffix forming infinitives of verbs)).

Full word history & related roots →

Translations

Chinese Cantonese 硬係 /硬系
  • 硬係 /硬系 (ngaang⁶ hai⁶)in a relentless manner
Finnish hellittämättömästi, heltymättömästi
  • hellittämättömästiin a relentless manner
  • heltymättömästiin a relentless manner
  • leppymättömästiin a relentless manner
  • periksiantamattomastiin a relentless manner
  • säälimättömästiin a relentless manner
  • sinnikkäästiin a relentless manner
French inexorablement, sans relâche
  • inexorablementin a relentless manner
  • sans relâchein a relentless manner
German unbarmherzig, unerbittlich
  • unbarmherzigin a relentless manner
  • unerbittlichin a relentless manner
Italian senza esclusione di colpi
  • senza esclusione di colpiin a relentless manner
Japanese びしびし, ビシビシ
  • びしびしin a relentless manner
  • ビシビシ (bishibishi)in a relentless manner
Latin irremissē, irremissibiliter
  • irremissēin a relentless manner
  • irremissibiliterin a relentless manner
Polish bezustannie, nieustannie
  • bezustanniein a relentless manner
  • nieustanniein a relentless manner
  • nieustającoin a relentless manner
  • zacięciein a relentless manner
Russian неотсту́пно, не поклада́я ру́к
  • неотсту́пно (neotstúpno)in a relentless manner
  • не поклада́я ру́к (ne pokladája rúk)in a relentless manner
  • неукло́нно (neuklónno)in a relentless manner
  • неуста́нно (neustánno)in a relentless manner
Spanish despiadadamente, inexorablemente
  • despiadadamentein a relentless manner
  • inexorablementein a relentless manner
  • implacablementein a relentless manner
  • inclementementein a relentless manner
Swedish obönhörligen, obönhörligt
  • obönhörligenin a relentless manner
  • obönhörligtin a relentless manner
Ukrainian невпи́нно
  • невпи́нно (nevpýnno)in a relentless manner
Vietnamese rầm rầm
  • rầm rầmin a relentless manner
Cite this entry
APA

relentlessly. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/relentlessly

MLA

“relentlessly.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/relentlessly. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “relentlessly,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/relentlessly.

Source: relentlessly on Wiktionary, CC BY-SA 4.0.