That's really not a bad (innocent typo) mistake, overall....
From an online dictionary:
im·plac·a·ble [imˈplakəb(ə)l]
ADJECTIVE
unable to be placated: "he was an implacable enemy of Ted's" synonyms: unappeasable · unforgiving · unsparing · inexorable · [more]
How's this for a new word??? ....
im·plac·a·tion
[imˈplakə shun]
NOUN
An action that fails to placate your enemy.