Firm and Implacable

Firm

Firm adjective - Fully committed to achieving a goal.
Usage example: asked him to reconsider, but he was firm in his commitment to the project

Implacable and firm are semantically related. In some cases you can use "Implacable" instead an adjective "Firm".

Nearby Words: firming, firmness, firmly, firmed

Implacable

Implacable adjective - Sticking to an opinion, purpose, or course of action in spite of reason, arguments, or persuasion.
Usage example: an implacable judge who knew in his bones that the cover-up extended to the highest levels of government

Firm and implacable are semantically related. Sometimes you can use "Firm" instead an adjective "Implacable".

Nearby Words: implacability, implacably
Cite this Source
Implacable and Firm. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/firm/implacable
Firm & Implacable. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/firm/implacable>.
Implacable or Firm. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/firm/implacable.
Google Ngram Viewer shows how "firm" and "implacable" have occurred on timeline