Fallacious
Fallacious adjective - Not using or following good reasoning.
Vague and fallacious are semantically related. In some cases you can use "Vague" instead an adjective "Fallacious".
Vague
Vague adjective - Not expressed in precise terms.
Fallacious and vague are semantically related. Sometimes you can use "Fallacious" instead an adjective "Vague".
Cite this Source
Vague and Fallacious. (2016). Retrieved 2026, August 16, from https://thesaurus.plus/related/fallacious/vague
Fallacious & Vague. N.p., 2016. Web. 16 Aug. 2026. <https://thesaurus.plus/related/fallacious/vague>.
Vague or Fallacious. 2016. Accessed August 16, 2026. https://thesaurus.plus/related/fallacious/vague.
Google Ngram Viewer shows how "fallacious" and "vague" have occurred on timeline