Firm
Firm adjective - Firmly positioned in place and difficult to dislodge.
Usage example: was firm in the saddle during the canter
Immovable is a synonym for firm in stable topic. In some cases you can use "Immovable" instead an adjective "Firm", when it comes to topics like property, character trait, secure, determined.
Immovable
Immovable adjective - Sticking to an opinion, purpose, or course of action in spite of reason, arguments, or persuasion.
Usage example: despite tears and pleading, the police officer was immovable on the matter of a hefty fine for speeding
Firm is a synonym for immovable in fixed topic. You can use "Firm" instead an adjective "Immovable", if it concerns topics such as characteristic, character trait, steadfast, established.
Nearby Words: immovability, immovably
Mutual synonyms
Cite this Source
Immovable and Firm. (2016). Retrieved 2026, August 16, from https://thesaurus.plus/related/firm/immovable
Firm & Immovable. N.p., 2016. Web. 16 Aug. 2026. <https://thesaurus.plus/related/firm/immovable>.
Immovable or Firm. 2016. Accessed August 16, 2026. https://thesaurus.plus/related/firm/immovable.
Google Ngram Viewer shows how "firm" and "immovable" have occurred on timeline