# implacable

> English word · Adjective · IPA /ɪmˈplækəb(ə)l/ · frequency rank #46,539

## Definitions
1. Not able to be placated or appeased.
2. Impossible to prevent or stop; inexorable, unrelenting, unstoppable.
3. Adamant; immovable.

## Etymology
From Middle English implācāble (“immitigable, unappeasable”) from Old French implacable (“harsh, unrelenting; implacable”) (modern French implacable), from Latin implācābilis (“unappeasable, implacable; irreconcilable”), from im- (variant of in- (prefix meaning ‘not’)) + plācābilis (“placable; appeasing, moderating, pacifying, propitiating; acceptable”) (from plācō (“to assuage, pacify, placate; to appease; to reconcile”) + -bilis (suffix forming adjectives indicating a capacity or worth of being acted upon)).

## Easily confused with
- **impeccable** (https://plainspell.com/en/vs/impeccable-vs-implacable)

## Common misspellings (16)
`imlpacable`, `immplacable`, `impalcable`, `implaacble`, `implacabble`, `implacabel`, `implacablle`, `implacalbe`, `implacbale`, `implaccable`, `implacible`, `implcaable`, `impllacable`, `impplacable`, `ipmlacable`, `miplacable`

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/implacable