Firm
Firm adjective - Having been established and usually not subject to change.
Usage example: the selling price of the house is firm, so there'll be no dickering
Unchanging is a synonym for firm in conscientious topic. In some cases you can use "Unchanging" instead an adjective "Firm".
Unchanging
Unchanging adjective - Not undergoing a change in condition.
Firm is a synonym for unchanging in state topic. Sometimes you can use "Firm" instead an adjective "Unchanging", if it concerns topics such as established, conscientious.
Nearby Words: unchangeable, unchanged
Mutual synonyms
Both words in one sentence
- The Airbenders are free-spirited but distanced and detached from the world, the Waterbenders are flexible but not motivated, the Earthbenders are firm but unchanging and fixed, and the Firebenders are passionate and determined at the price of obsession and psychopathy.
Cite this Source
Unchanging and Firm. (2016). Retrieved 2026, August 16, from https://thesaurus.plus/related/firm/unchanging
Firm & Unchanging. N.p., 2016. Web. 16 Aug. 2026. <https://thesaurus.plus/related/firm/unchanging>.
Unchanging or Firm. 2016. Accessed August 16, 2026. https://thesaurus.plus/related/firm/unchanging.
Google Ngram Viewer shows how "firm" and "unchanging" have occurred on timeline