implacable was our Word of the Day on 09/15/2016. Hear the podcast!
Examples of implacable in a Sentence
He has an implacable hatred for his political opponents.
an implacable judge who knew in his bones that the cover-up extended to the highest levels of government
Did You Know?
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
First Known Use: 15th century
IMPLACABLE Defined for English Language Learners
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
Definition of implacable for Students
: impossible to please, satisfy, or change implacable enemies
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