Fallacious and Unlogical

Fallacious

Fallacious adjective - Not using or following good reasoning.

Unlogical and fallacious are semantically related. In some cases you can replace term "Unlogical" with "Fallacious", this adjectives are similar.

Unlogical

Unlogical adjective - Lacking in correct logical relation.

Fallacious and unlogical are semantically related. Sometimes you can use "Fallacious" instead an adjective "Unlogical".
Cite this Source
Unlogical and Fallacious. (2016). Retrieved 2026, August 10, from https://thesaurus.plus/related/fallacious/unlogical
Fallacious & Unlogical. N.p., 2016. Web. 10 Aug. 2026. <https://thesaurus.plus/related/fallacious/unlogical>.
Unlogical or Fallacious. 2016. Accessed August 10, 2026. https://thesaurus.plus/related/fallacious/unlogical.
Google Ngram Viewer shows how "fallacious" and "unlogical" have occurred on timeline