Pious and Perfidious

Pious

Pious adjective - Firm in one's allegiance to someone or something.
Usage example: a pious supporter of his school's athletic teams, during winning and losing seasons alike

Perfidious is an antonym for pious.

Nearby Words: piety, piousness, piously

Perfidious

Perfidious adjective - Not true in one's allegiance to someone or something.

Pious is an antonym for perfidious.

Nearby Words: perfidy, perfidiously
Cite this Source
Perfidious and Pious. (2016). Retrieved 2026, August 13, from https://thesaurus.plus/related/pious/perfidious
Pious & Perfidious. N.p., 2016. Web. 13 Aug. 2026. <https://thesaurus.plus/related/pious/perfidious>.
Perfidious or Pious. 2016. Accessed August 13, 2026. https://thesaurus.plus/related/pious/perfidious.
Google Ngram Viewer shows how "pious" and "perfidious" have occurred on timeline