An example of implacable is a screaming child who won't listen to reason.
- not placable; that cannot be appeased or pacified; relentless; inexorable
- Rare that cannot be eased, lessened, or allayed
Origin of implacableFrench from Classical Latin implacabilis
Origin of implacableMiddle English from Old French from Latin implācābilis in- not ; see in- 1. plācābilis placable ; see placable .
(comparative more implacable, superlative most implacable)
From Old French implacable, from Latin implācābilis