Fallacious
Fallacious adjective - Not using or following good reasoning.
Groundless is a synonym for fallacious in invalid topic. In some cases you can use "Groundless" instead an adjective "Fallacious", when it comes to topics like null and void, baseless.
Groundless
Groundless adjective - Having no basis in reason or fact.
Usage example: fears of a strike proved groundless
Fallacious is a synonym for groundless in invalid topic. You can use "Fallacious" instead an adjective "Groundless", if it concerns topics such as null and void, baseless.
Nearby Words: ground, groundlessness
Mutual synonyms
Related pairs
- wrong and fallacious
- wrong and groundless
- false and fallacious
- false and groundless
- irrational and fallacious
- irrational and groundless
- spurious and fallacious
- spurious and groundless
- flimsy and fallacious
- flimsy and groundless
- invalid and fallacious
- invalid and groundless
- illogical and fallacious
- illogical and groundless
Cite this Source
Groundless and Fallacious. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/fallacious/groundless
Fallacious & Groundless. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/fallacious/groundless>.
Groundless or Fallacious. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/fallacious/groundless.
Google Ngram Viewer shows how "fallacious" and "groundless" have occurred on timeline