Perfidiousness and Staunchness
Opposite meaning words
Perfidiousness
Perfidiousness noun - Lack of faithfulness especially to one's husband or wife.
Usage example: perfidiousness seems to descend to a whole other level when a husband cheats on a wife who's terminally ill
Staunchness is an antonym for perfidiousness.
Staunchness
Staunchness noun - Loyalty in the face of trouble and difficulty.
Perfidiousness is an antonym for staunchness.
Cite this Source
Staunchness and Perfidiousness. (2016). Retrieved 2026, August 16, from https://thesaurus.plus/related/perfidiousness/staunchness
Perfidiousness & Staunchness. N.p., 2016. Web. 16 Aug. 2026. <https://thesaurus.plus/related/perfidiousness/staunchness>.
Staunchness or Perfidiousness. 2016. Accessed August 16, 2026. https://thesaurus.plus/related/perfidiousness/staunchness.
Google Ngram Viewer shows how "perfidiousness" and "staunchness" have occurred on timeline