Fallacious
Fallacious adjective - Not using or following good reasoning.
Unfounded is a synonym for fallacious in false topic. In some cases you can use "Unfounded" instead an adjective "Fallacious", when it comes to topics like baseless.
Unfounded
Unfounded adjective - Having no basis in reason or fact.
Usage example: the accusation proved to be unfounded
Fallacious is a synonym for unfounded in false topic. You can use "Fallacious" instead an adjective "Unfounded", if it concerns topics such as speculative, not based on fact.
Nearby Word: unfoundedly
Mutual synonyms
Related pairs
- wrong and fallacious
- wrong and unfounded
- false and fallacious
- false and unfounded
- faulty and fallacious
- faulty and unfounded
- spurious and fallacious
- spurious and unfounded
- deceptive and fallacious
- deceptive and unfounded
- invalid and fallacious
- invalid and unfounded
- illogical and fallacious
- illogical and unfounded
Cite this Source
Unfounded and Fallacious. (2016). Retrieved 2026, August 13, from https://thesaurus.plus/related/fallacious/unfounded
Fallacious & Unfounded. N.p., 2016. Web. 13 Aug. 2026. <https://thesaurus.plus/related/fallacious/unfounded>.
Unfounded or Fallacious. 2016. Accessed August 13, 2026. https://thesaurus.plus/related/fallacious/unfounded.
Google Ngram Viewer shows how "fallacious" and "unfounded" have occurred on timeline