Perfidious
Perfidious adjective - Not true in one's allegiance to someone or something.
Shifty and perfidious are semantically related. in treacherous topic. In some cases you can use "Shifty" instead the word "Perfidious" as an adjective or a noun.
Nearby Words: perfidy, perfidiously
Shifty
Shifty adjective - Given to acting in secret and to concealing one's intentions.
Usage example: shifty politicians making deals to channel federal funds into their districts
Perfidious and shifty are semantically related. Sometimes you can use "Perfidious" instead the word "Shifty" as an adjective or a noun.
Mutual synonyms
Cite this Source
Shifty and Perfidious. (2016). Retrieved 2026, August 02, from https://thesaurus.plus/related/perfidious/shifty
Perfidious & Shifty. N.p., 2016. Web. 02 Aug. 2026. <https://thesaurus.plus/related/perfidious/shifty>.
Shifty or Perfidious. 2016. Accessed August 02, 2026. https://thesaurus.plus/related/perfidious/shifty.
Google Ngram Viewer shows how "perfidious" and "shifty" have occurred on timeline