Top definition
Unable to pacify.
Unable to appease.
Unrelenting.
My enemy is implacable
by Robin December 05, 2004
Get the mug
Get a implacable mug for your father Paul.
2
A descriptive word indicative of a person who is predisposed to very clean teeth.
The guy is so implacable that his dentist had to give up his business.
by Paradoctor April 22, 2018
Get the mug
Get a implacable mug for your friend Jerry.