Perfidious and Responsible
Opposite meaning words
Perfidious
Perfidious adjective - Not true in one's allegiance to someone or something.
Usage example: a perfidious campaign worker revealed the senator's strategy to his leading rival for the nomination
Responsible is an antonym for perfidious.
Nearby Words: perfidy, perfidiously
Responsible
Responsible adjective - Worthy of one's trust.
Usage example: our regular babysitter is very responsible
Perfidious is an antonym for responsible.
Cite this Source
Responsible and Perfidious. (2016). Retrieved 2026, August 15, from https://thesaurus.plus/related/perfidious/responsible
Perfidious & Responsible. N.p., 2016. Web. 15 Aug. 2026. <https://thesaurus.plus/related/perfidious/responsible>.
Responsible or Perfidious. 2016. Accessed August 15, 2026. https://thesaurus.plus/related/perfidious/responsible.
Google Ngram Viewer shows how "perfidious" and "responsible" have occurred on timeline