Definition of "implacability" [im•pla•ca•bil•i•ty]

• The quality or state of being implacable. (noun)

Wiktionary.org : Text is available under the Creative Commons Attribution-ShareAlike License

• "And with that kind of implacability and with that kind of terror from a terrorist regime par excellence, it simply has to go."
• "The snow was coming down with the implacability of an Old Testament plague."
• "Straightening, he lost the stony implacability, but a grim light still crouched in the corners of his eyes."