Firm
Firm adjective - Not showing weakness or uncertainty.
Usage example: a friendly fellow with a ready smile and a firm handshake
Robust is a synonym for firm in stable topic. In some cases you can use "Robust" instead the word "Firm" as an adjective or a noun, when it comes to topics like secure, strong, hearty.
Robust
Robust adjective - Having active strength of body or mind.
Usage example: a robust older man who still bicycles 10 miles a day
Firm is a synonym for robust in stable topic. You can use "Firm" instead the word "Robust" as an adjective or a noun, if it concerns topics such as hearty.
Nearby Words: robustness, robustly
Mutual synonyms
Cite this Source
Robust and Firm. (2016). Retrieved 2026, August 15, from https://thesaurus.plus/related/firm/robust
Firm & Robust. N.p., 2016. Web. 15 Aug. 2026. <https://thesaurus.plus/related/firm/robust>.
Robust or Firm. 2016. Accessed August 15, 2026. https://thesaurus.plus/related/firm/robust.
Google Ngram Viewer shows how "firm" and "robust" have occurred on timeline