Fallacious
Fallacious adjective - Not using or following good reasoning.
Surd and fallacious are semantically related. In some cases you can use "Surd" instead an adjective "Fallacious".
Surd
Surd adjective - Produced without vibration of the vocal cords.
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Synonyms for Surd
Fallacious and surd are semantically related. Sometimes you can use "Fallacious" instead an adjective "Surd".
Mutual synonyms
Cite this Source
Surd and Fallacious. (2016). Retrieved 2026, August 14, from https://thesaurus.plus/related/fallacious/surd
Fallacious & Surd. N.p., 2016. Web. 14 Aug. 2026. <https://thesaurus.plus/related/fallacious/surd>.
Surd or Fallacious. 2016. Accessed August 14, 2026. https://thesaurus.plus/related/fallacious/surd.
Google Ngram Viewer shows how "fallacious" and "surd" have occurred on timeline