Firmer
Set and firmer are semantically related. in inflexible topic. In some cases you can use "Set" instead an adjective "Firmer", when it comes to topics like unalterable, stable.
Mutual synonyms
Cite this Source
Set and Firmer. (2016). Retrieved 2026, August 03, from https://thesaurus.plus/related/firmer/set
Firmer & Set. N.p., 2016. Web. 03 Aug. 2026. <https://thesaurus.plus/related/firmer/set>.
Set or Firmer. 2016. Accessed August 03, 2026. https://thesaurus.plus/related/firmer/set.
Google Ngram Viewer shows how "firmer" and "set" have occurred on timeline