- incapable of being placated or pacified; unappeasable
- inflexible; intractable
WordReference Random House Learner's Dictionary of American English © 2026
im•plac•a•ble /ɪmˈplækəbəl, -ˈpleɪkə-/USA pronunciation
adj.
im•plac•a•bly, adv.: The enemy advanced implacably.See -plac-.
WordReference Random House Unabridged Dictionary of American English © 2026- impossible to placate; not to be pacified or stopped:an implacable enemy.
im•plac•a•bly, adv.: The enemy advanced implacably.See -plac-.
im•plac•a•ble
(im plak′ə bəl, -plā′kə-),USA pronunciation adj.
im•plac′a•bil′i•ty, im•plac′a•ble•ness, n.
im•plac′a•bly, adv.
- not to be appeased, mollified, or pacified;
inexorable:an implacable enemy.
- Latin implācābilis. See im-2, placable
- late Middle English 1375–1425
im•plac′a•bly, adv.
- unappeasable, unbending, merciless. See inflexible.
Collins Concise English Dictionary © HarperCollins Publishers::
implacable /ɪmˈplækəbəl/ adj
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'implacable' also found in these entries (note: many are not synonyms or translations):
inexpiable
- iron
- relentless
- deadly
- inexorable
- inflexible
- lighten
- malevolence
- mortal
- pitiless
- remorseless
- revenge
- unrelenting
- steamroller
