Perfidious
Perfidious adjective - Not true in one's allegiance to someone or something.
Pretentious and perfidious are semantically related. In some cases you can use "Pretentious" instead the word "Perfidious" as a noun or an adjective.
Nearby Words: perfidy, perfidiously
Pretentious
Pretentious adjective - Self-consciously trying to present an appearance of grandeur or importance.
Perfidious and pretentious are semantically related. Sometimes you can use "Perfidious" instead the word "Pretentious" as a noun or an adjective.
Nearby Words: pretentiousness, pretentiously
Cite this Source
Pretentious and Perfidious. (2016). Retrieved 2026, August 03, from https://thesaurus.plus/related/perfidious/pretentious
Perfidious & Pretentious. N.p., 2016. Web. 03 Aug. 2026. <https://thesaurus.plus/related/perfidious/pretentious>.
Pretentious or Perfidious. 2016. Accessed August 03, 2026. https://thesaurus.plus/related/perfidious/pretentious.
Google Ngram Viewer shows how "perfidious" and "pretentious" have occurred on timeline