English Explanatory Dictionary

implacable

English dictionary entry

Meanings

adj
  1. Not able to be placated or appeased.
  2. Impossible to prevent or stop; inexorable, unrelenting, unstoppable.
  3. Adamant; immovable.

Pronunciation

/ɪmˈplækəb(ə)l/ /-ˈpleɪ-/ LL-Q1860 (eng)-Vealhurl-implacable.wav /ɪmˈplækəbəl/ En-us-implacable.ogg

Word forms

implacable more implacable most implacable

Etymology

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)).

Synonyms

impacable irreconcilable unassuageable unplacable unpleasable relentless unremitting unyielding

Antonyms

appeasable assuageable pacable pacifiable placable

Related words

placability placable placableness placably unplacable

Derived words

implacability implacableness implacably
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