Firm
Firm adjective - Not showing weakness or uncertainty.
Significant and firm are semantically related. In some cases you can use "Significant" instead an adjective "Firm".
Significant
Significant adjective - Clearly conveying a special meaning (as one's mood).
Firm and significant are semantically related. Sometimes you can use "Firm" instead an adjective "Significant".
Mutual synonyms
Cite this Source
Significant and Firm. (2016). Retrieved 2026, July 22, from https://thesaurus.plus/related/firm/significant
Firm & Significant. N.p., 2016. Web. 22 Jul. 2026. <https://thesaurus.plus/related/firm/significant>.
Significant or Firm. 2016. Accessed July 22, 2026. https://thesaurus.plus/related/firm/significant.
Google Ngram Viewer shows how "firm" and "significant" have occurred on timeline