Perfidious and Unconscientious

Perfidious

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

Unconscientious and perfidious are semantically related In some cases you can use "Unconscientious" instead an adjective "Perfidious".

Nearby Words: perfidy, perfidiously

Unconscientious

Unconscientious adjective - Not conscientious;.

Perfidious and unconscientious are semantically related in immoral topic. Sometimes you can use "Perfidious" instead an adjective "Unconscientious".
Cite this Source
Unconscientious and Perfidious. (2016). Retrieved 2026, August 07, from https://thesaurus.plus/related/perfidious/unconscientious
Perfidious & Unconscientious. N.p., 2016. Web. 07 Aug. 2026. <https://thesaurus.plus/related/perfidious/unconscientious>.
Unconscientious or Perfidious. 2016. Accessed August 07, 2026. https://thesaurus.plus/related/perfidious/unconscientious.
Google Ngram Viewer shows how "perfidious" and "unconscientious" have occurred on timeline