Fallacious and Treacherous

Fallacious

Fallacious adjective - Tending or having power to deceive.
Usage example: consumers who harbor the fallacious belief that credit-card spending will never catch up with them

Treacherous and fallacious are semantically related. In some cases you can use "Treacherous" instead an adjective "Fallacious".

Treacherous

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

Fallacious and treacherous are semantically related. Sometimes you can use "Fallacious" instead an adjective "Treacherous".

Nearby Words: treachery, treacherously
Cite this Source
Treacherous and Fallacious. (2016). Retrieved 2026, August 16, from https://thesaurus.plus/related/fallacious/treacherous
Fallacious & Treacherous. N.p., 2016. Web. 16 Aug. 2026. <https://thesaurus.plus/related/fallacious/treacherous>.
Treacherous or Fallacious. 2016. Accessed August 16, 2026. https://thesaurus.plus/related/fallacious/treacherous.
Google Ngram Viewer shows how "fallacious" and "treacherous" have occurred on timeline