Fallacious
Fallacious adjective - Not using or following good reasoning.
Unsubstantiated and fallacious are semantically related. in baseless topic. In some cases you can use "Unsubstantiated" instead an adjective "Fallacious".
Unsubstantiated
Unsubstantiated adjective - Having no basis in reason or fact.
Usage example: an unsubstantiated claim that was thrown out of court
Fallacious and unsubstantiated are semantically related. Sometimes you can use "Fallacious" instead an adjective "Unsubstantiated".
Nearby Word: unsubstantially
Mutual synonyms
Related pairs
- wrong and fallacious
- wrong and unsubstantiated
- weak and fallacious
- weak and unsubstantiated
- false and fallacious
- false and unsubstantiated
- spurious and fallacious
- spurious and unsubstantiated
- flimsy and fallacious
- flimsy and unsubstantiated
- invalid and fallacious
- invalid and unsubstantiated
- illogical and fallacious
- illogical and unsubstantiated
Cite this Source
Unsubstantiated and Fallacious. (2016). Retrieved 2026, August 02, from https://thesaurus.plus/related/fallacious/unsubstantiated
Fallacious & Unsubstantiated. N.p., 2016. Web. 02 Aug. 2026. <https://thesaurus.plus/related/fallacious/unsubstantiated>.
Unsubstantiated or Fallacious. 2016. Accessed August 02, 2026. https://thesaurus.plus/related/fallacious/unsubstantiated.
Google Ngram Viewer shows how "fallacious" and "unsubstantiated" have occurred on timeline