Im*pla`ca*bil"i*ty (?), n. [L. implacabilitas: cf. F. implacabilité.]
The quality or state of being implacable.
Im*pla"ca*ble (?), a. [L. implacabilis; pref. im- not + placabilis: cf.
F. implacable. See Placable.] 1. Not placable; not to be appeased;
incapable of being pacified; inexorable; as, an implacable prince.