Decided
Decided adjective - Not subject to misinterpretation or more than one interpretation.
Firm is a synonym for decided in determined topic. In some cases you can use "Firm" instead an adjective "Decided", when it comes to topics like decide.
Mutual synonyms
Both words in one sentence
- But they decided to put their feelings on the back burner for the sake of having a professional relationship at the firm.
Source: Office Romance - Cliff decides to give Jimmy a second chance but Jimmy has pretty much decided to leave and start his own firm.
Source: Ungrateful Bastard - Nonetheless, he's a firm believer in the codes of his society, and his actions are decided for him.
Source: Literature / Effi Briest
Cite this Source
Firm and Decided. (2016). Retrieved 2026, August 15, from https://thesaurus.plus/related/decided/firm
Decided & Firm. N.p., 2016. Web. 15 Aug. 2026. <https://thesaurus.plus/related/decided/firm>.
Firm or Decided. 2016. Accessed August 15, 2026. https://thesaurus.plus/related/decided/firm.
Google Ngram Viewer shows how "decided" and "firm" have occurred on timeline