Firm
Firm adjective - Not showing weakness or uncertainty.
Motionless is a synonym for firm in secure topic. In some cases you can use "Motionless" instead an adjective "Firm", when it comes to topics like stable, stationary.
Motionless
Motionless adjective - Not in physical motion.
Firm is a synonym for motionless in calm topic. Sometimes you can use "Firm" instead an adjective "Motionless".
Mutual synonyms
Cite this Source
Motionless and Firm. (2016). Retrieved 2026, August 15, from https://thesaurus.plus/related/firm/motionless
Firm & Motionless. N.p., 2016. Web. 15 Aug. 2026. <https://thesaurus.plus/related/firm/motionless>.
Motionless or Firm. 2016. Accessed August 15, 2026. https://thesaurus.plus/related/firm/motionless.
Google Ngram Viewer shows how "firm" and "motionless" have occurred on timeline