Hypertext Webster Gateway: "implacable"
From Webster's Revised Unabridged Dictionary (1913) (web1913)
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.
I see thou art implacable. --Milton.
An object of implacable enmity. --Macaulay.
2. Incapable of ebign relieved or assuaged; inextinguishable.
[R.]
O! how I burn with implacable fire. --Spenser.
Which wrought them pain Implacable, and many a
dolorous groan. --Milton.
Syn: Unappeasable; inexorable; irreconcilable; unrelenting;
relentless; unyielding.
From WordNet (r) 1.7 (wn)
implacable
adj : impossible to placate; "an implacable enemy" [ant: {placable}]
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