Fallacious
Fallacious adjective - Not using or following good reasoning.
Insufficient and fallacious are semantically related. In some cases you can use "Insufficient" instead an adjective "Fallacious".
Insufficient
Insufficient adjective - Not coming up to an expected measure or meeting a particular need.
Fallacious and insufficient are semantically related. Sometimes you can use "Fallacious" instead an adjective "Insufficient".
Nearby Words: insufficiency, insufficiently
Cite this Source
Insufficient and Fallacious. (2016). Retrieved 2026, August 16, from https://thesaurus.plus/related/fallacious/insufficient
Fallacious & Insufficient. N.p., 2016. Web. 16 Aug. 2026. <https://thesaurus.plus/related/fallacious/insufficient>.
Insufficient or Fallacious. 2016. Accessed August 16, 2026. https://thesaurus.plus/related/fallacious/insufficient.
Google Ngram Viewer shows how "fallacious" and "insufficient" have occurred on timeline