Implacable
(a.) Not placable; not to be appeased; incapable of being pacified; inexorable; as, an implacable prince.
(a.) Incapable of ebign relieved or assuaged; inextinguishable.
Similar Words:
Implacability Implacable Implacableness Implacably Implacental Implacentalia Implant Implantation Implanted Implanting