implacable

play
adjective im·pla·ca·ble \ (ˌ)im-ˈpla-kə-bəl , -ˈplā- \

Definition of implacable

:not placable :not capable of being appeased, significantly changed, or mitigated
  • an implacable enemy

implacability

play \(ˌ)im-ˌpla-kə-ˈbi-lə-tē, -ˌplā-\ noun

implacably

play \(ˌ)im-ˈpla-kə-blē, -ˈplā-\ adverb

implacable was our Word of the Day on 09/15/2016. Hear the podcast!

Examples of implacable in a Sentence

  1. He has an implacable hatred for his political opponents.

  2. an implacable judge who knew in his bones that the cover-up extended to the highest levels of government

Recent Examples of implacable from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'implacable.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

How Should You Use implacable?

Implacable is based on the Latin verb placare, meaning "to calm" or "to soothe." It joins the negative im- to the root to describe something that cannot be calmed or soothed or altered. The root placare also gave us placate. You may ask, what about the similar-looking words placid and placebo? These words are related to implacable and placate, but not as closely as you might suspect. They come from the Latin verb placēre, a relative of placare that means "to please."

Origin and Etymology of implacable

Middle English, from Latin implacabilis, from in- + placabilis placable


IMPLACABLE Defined for English Language Learners

implacable

play
adjective

Definition of implacable for English Language Learners

  • : opposed to someone or something in a very angry or determined way that cannot be changed


IMPLACABLE Defined for Kids

implacable

play
adjective im·pla·ca·ble \ im-ˈpla-kə-bəl , -ˈplā- \

Definition of implacable for Students

:impossible to please, satisfy, or change
  • implacable enemies


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a strongly worded attack

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