Fallacious
Fallacious adjective - Not using or following good reasoning.
Vacant and fallacious are semantically related. In some cases you can use "Vacant" instead an adjective "Fallacious".
Vacant
Vacant adjective - Lacking contents that could or should be present.
Fallacious and vacant are semantically related. Sometimes you can use "Fallacious" instead an adjective "Vacant".
Cite this Source
Vacant and Fallacious. (2016). Retrieved 2026, August 16, from https://thesaurus.plus/related/fallacious/vacant
Fallacious & Vacant. N.p., 2016. Web. 16 Aug. 2026. <https://thesaurus.plus/related/fallacious/vacant>.
Vacant or Fallacious. 2016. Accessed August 16, 2026. https://thesaurus.plus/related/fallacious/vacant.
Google Ngram Viewer shows how "fallacious" and "vacant" have occurred on timeline