Implacable
Implacable adjective - Sticking to an opinion, purpose, or course of action in spite of reason, arguments, or persuasion.
Mortal is a synonym for implacable in merciless topic. In some cases you can use "Mortal" instead an adjective "Implacable".
Nearby Words: implacability, implacably
Mortal
Mortal adjective - Likely to cause or capable of causing death.
Implacable is a synonym for mortal in unrelenting topic. Sometimes you can use "Implacable" instead an adjective "Mortal", if it concerns topics such as irreconcilable.
Mutual synonyms
Related pairs
Both words in one sentence
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Implacable Man: The Covenant siblings cannot be killed by any mortal weapon, only with the Scythe of the Celt.
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He may be a mortal man, but he surpasses Determinator status at the speed of light and lands squarely into Implacable Man territory.
Source: One Man Army / Video Games
Cite this Source
Mortal and Implacable. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/implacable/mortal
Implacable & Mortal. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/implacable/mortal>.
Mortal or Implacable. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/implacable/mortal.
Google Ngram Viewer shows how "implacable" and "mortal" have occurred on timeline