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
Shady and fallacious are semantically related. In some cases you can use "Shady" instead an adjective "Fallacious".
Shady
Shady adjective - Protected from the sun's rays.
Fallacious and shady are semantically related. Sometimes you can use "Fallacious" instead an adjective "Shady".
Mutual synonyms
Cite this Source
Shady and Fallacious. (2016). Retrieved 2026, August 15, from https://thesaurus.plus/related/fallacious/shady
Fallacious & Shady. N.p., 2016. Web. 15 Aug. 2026. <https://thesaurus.plus/related/fallacious/shady>.
Shady or Fallacious. 2016. Accessed August 15, 2026. https://thesaurus.plus/related/fallacious/shady.
Google Ngram Viewer shows how "fallacious" and "shady" have occurred on timeline