Perfidious
Perfidious adjective - Not true in one's allegiance to someone or something.
Unctuous and perfidious are semantically related. In some cases you can use "Unctuous" instead an adjective "Perfidious".
Nearby Words: perfidy, perfidiously
Unctuous
Unctuous adjective - Not being or expressing what one appears to be or express.
Perfidious and unctuous are semantically related. Sometimes you can use "Perfidious" instead an adjective "Unctuous".
Nearby Word: unctuously
Mutual synonyms
Related pairs
Cite this Source
Unctuous and Perfidious. (2016). Retrieved 2026, July 22, from https://thesaurus.plus/related/perfidious/unctuous
Perfidious & Unctuous. N.p., 2016. Web. 22 Jul. 2026. <https://thesaurus.plus/related/perfidious/unctuous>.
Unctuous or Perfidious. 2016. Accessed July 22, 2026. https://thesaurus.plus/related/perfidious/unctuous.
Google Ngram Viewer shows how "perfidious" and "unctuous" have occurred on timeline