implacable

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implacable

  • /ɪmˈplækəb(ə)l/ UK
  • /-ˈpleɪ-/ UK
  • /ɪmˈplækəbəl/ US

Where it comes from

From Middle English implācāble (“immitigable, unappeasable”) from Old French implacable (“harsh, unrelenting; implacable”) (modern French implacable), from Latin implācābilis (“unappeasable, implacable; irreconcilable”), from im- (variant of in- (prefix meaning ‘not’)) + plācābilis (“placable; appeasing, moderating, pacifying, propitiating; acceptable”) (from plācō (“to assuage, pacify, placate; to appease; to reconcile”) + -bilis (suffix forming adjectives indicating a capacity or worth of being acted upon)).

adjective more implacable · most implacable

  1. Not able to be placated or appeased. He is knight dubb'd with vnhatche'd Rapier, and on carpet conſideration, but he is a diuell in priuate brall, soules and bodies hath he diuorc'd three, and his incenſement at this moment is ſo implacable, that ſatisfaction can be none, but by pangs of death and ſepulcher: Hob, nob, is his word: giu'

    Similar: impacable, irreconcilable, unassuageable, unplacable, unpleasable · Opposite: appeasable, assuageable, pacable, pacifiable, placable

  2. Impossible to prevent or stop; inexorable, unrelenting, unstoppable. The battleships Washington and South Dakota pushed through the sea with an implacable ease.

    Similar: relentless, unremitting, unyielding

  3. Adamant; immovable. Indeed Cain hated his Brother, becauſe his own works were evil, and his Brothers righteous; and if thy Wife and Children have been offended with thee for this, they thereby ſhew themſelves to be implacable to good; and thou haſt delivered thy ſoul from their blood.

Translations

Every language

adj not able to be placated or appeased

Españolimplacable
Portuguêsimplacável
Deutschunversöhnlich
Italianoimplacabile
Ελληνικάανευμενίσιμος anevmenísimos, ανευμενίσιμη anevmenísimi, ανευμενίσιμο anevmenísimo, αμείλικτος ameíliktos, αδυσώπητος adysópitos
Românăimplacabil
Русскийнепримири́мый neprimirímyj, неумоли́мый neumolímyj, закля́тый zakljátyj

adj impossible to prevent or stop — see also inexorable, unstoppable

Españolimplacable
Françaisimplacable, irréductible
Italianoimplacabile
Ελληνικάαδυσώπητος adysópitos, αδυσώπητη adysópiti
Русскийнеумолимый neumolimyj

adj adamant; immovable — see also adamant, immovable

Españolimplacable, tenaz
Deutschunerbittlich
Românăde neclintit, ferm, imobil, nemișcat, nemișcabil
Русскийнепрекло́нный nepreklónnyj, несдвига́емый nesdvigájemyj

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MLA

"implacable." Wiktionary, via Micwyn, micwyn.com/word/implacable. Accessed 6 Nov. 2026.

APA

implacable. (n.d.). In Wiktionary, via Micwyn. Retrieved November 6, 2026, from https://micwyn.com/word/implacable

Chicago

"implacable." Wiktionary, via Micwyn. Accessed November 6, 2026. https://micwyn.com/word/implacable.

BibTeX
@misc{implacable_2026,
  title = {implacable},
  howpublished = {Wiktionary, via Micwyn},
  year = {2026},
  url = {https://micwyn.com/word/implacable},
  urldate = {2026-11-06}
}