Firm
Unfailing
Unfailing adjective - Not being or likely to be wrong.
Firm and unfailing are semantically related in steadfast topic. Sometimes you can use "Firm" instead an adjective "Unfailing".
Nearby Word: unfailingly
Mutual synonyms
Cite this Source
Unfailing and Firm. (2016). Retrieved 2026, July 28, from https://thesaurus.plus/related/firm/unfailing
Firm & Unfailing. N.p., 2016. Web. 28 Jul. 2026. <https://thesaurus.plus/related/firm/unfailing>.
Unfailing or Firm. 2016. Accessed July 28, 2026. https://thesaurus.plus/related/firm/unfailing.
Google Ngram Viewer shows how "firm" and "unfailing" have occurred on timeline