Abysmal
Abysmal adjective - Extending far downward.
Fallacious and abysmal are semantically related. In some cases you can use "Fallacious" instead an adjective "Abysmal".
Fallacious
Fallacious adjective - Not using or following good reasoning.
Abysmal and fallacious are semantically related. Sometimes you can use "Abysmal" instead an adjective "Fallacious".
Mutual synonyms
Cite this Source
Fallacious and Abysmal. (2016). Retrieved 2026, August 15, from https://thesaurus.plus/related/abysmal/fallacious
Abysmal & Fallacious. N.p., 2016. Web. 15 Aug. 2026. <https://thesaurus.plus/related/abysmal/fallacious>.
Fallacious or Abysmal. 2016. Accessed August 15, 2026. https://thesaurus.plus/related/abysmal/fallacious.
Google Ngram Viewer shows how "abysmal" and "fallacious" have occurred on timeline