Disloyal and Perfidious

Disloyal

Disloyal adjective - Not true in one's allegiance to someone or something.
Usage example: we sensed that he was disloyal and would eventually turn on us

Perfidious is a synonym for disloyal in treacherous topic. In some cases you can use "Perfidious" instead an adjective "Disloyal", when it comes to topics like traitorous, continue, faithless, unfaithful. popular alternative

Nearby Words: disloyalty, disloyally

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

Disloyal is a synonym for perfidious in treacherous topic. You can use "Disloyal" instead an adjective "Perfidious", if it concerns topics such as traitorous, continue, faithless, deceitful. popular alternative

Nearby Words: perfidy, perfidiously
Cite this Source
Perfidious and Disloyal. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/disloyal/perfidious
Disloyal & Perfidious. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/disloyal/perfidious>.
Perfidious or Disloyal. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/disloyal/perfidious.
Google Ngram Viewer shows how "disloyal" and "perfidious" have occurred on timeline