[im-plak-uh-buhl, -pley-kuh-]


not to be appeased, mollified, or pacified; inexorable: an implacable enemy.

Nearby words

  1. impious,
  2. impiously,
  3. impish,
  4. impitoyable,
  5. implacability,
  6. implacental,
  7. implant,
  8. implant denture,
  9. implantable,
  10. implantation

Origin of implacable

First recorded in 1375–1425; late Middle English word from Latin word implācābilis. See im-2, placable

SYNONYMS FOR implacable
Related formsim·plac·a·bil·i·ty, im·plac·a·ble·ness, nounim·plac·a·bly, adverb Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for implacably

British Dictionary definitions for implacably



incapable of being placated or pacified; unappeasable
inflexible; intractable
Derived Formsimplacability or implacableness, nounimplacably, adverb

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for implacably



early 15c., from Old French implacable, from Latin implacabilis "unappeasable," from assimilated form of in- "not, opposite of" (see in- (1)) + placabilis "easily appeased" (see placate). Related: Implacably.

Online Etymology Dictionary, © 2010 Douglas Harper