Perfidious
Perfidious adjective - Not true in one's allegiance to someone or something.
Rotten and perfidious are semantically related In some cases you can use "Rotten" instead an adjective "Perfidious".
Nearby Words: perfidy, perfidiously
Rotten
Rotten adjective - Having undergone organic breakdown.
Perfidious and rotten are semantically related in corrupt topic. Sometimes you can use "Perfidious" instead an adjective "Rotten", if it concerns topics such as dishonest.
Nearby Words: rottenness, rottenly
Mutual synonyms
Cite this Source
Rotten and Perfidious. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/perfidious/rotten
Perfidious & Rotten. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/perfidious/rotten>.
Rotten or Perfidious. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/perfidious/rotten.
Google Ngram Viewer shows how "perfidious" and "rotten" have occurred on timeline