Perfect
Unfailing
Unfailing adjective - Not being or likely to be wrong.
Usage example: an unfailing judge of personal character
Perfect and unfailing are semantically related. Sometimes you can use "Perfect" instead an adjective "Unfailing".
Nearby Word: unfailingly
Cite this Source
Unfailing and Perfect. (2016). Retrieved 2026, August 03, from https://thesaurus.plus/related/perfect/unfailing
Perfect & Unfailing. N.p., 2016. Web. 03 Aug. 2026. <https://thesaurus.plus/related/perfect/unfailing>.
Unfailing or Perfect. 2016. Accessed August 03, 2026. https://thesaurus.plus/related/perfect/unfailing.
Google Ngram Viewer shows how "perfect" and "unfailing" have occurred on timeline