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illustration Implacable



Part of speech: adjective

Origin: French, 16th century


Unable to be placated.


Relentless; unstoppable.

Examples of Implacable in a sentence

"Charlie tried appealing to the principal to cancel his suspension for pranks and mischief, but she was implacable."

"When it comes to enforcing our teenage son’s nightly curfew, my husband and I are implacable."

About Implacable

“Implacable” entered English from the same word in Old French, where it meant “harsh” and “unrelenting.” The Old French “implacable” was based on the Latin “implācābilis” (“unappeasable” or “irreconcilable”).

Did you Know?

The hardest thing for many new parents is getting their babies to sleep through the night. This challenge is known as “sleep training,” in which parents try to find the right set of circumstances to relax their baby enough that they will fall asleep on their own. By the time a baby is four months old, many experts say they can begin learning the self-soothing techniques necessary to fall asleep on their own and remain asleep through the night. However, sleep training is a challenge. Some babies take to it quickly, while others are implacable, rejecting every attempt parents can think of to soothe them. Implacable babies eventually learn to sleep by themselves, but require far more parental effort, ingenuity, and patience to get to that state.

illustration Implacable

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