Groundless and Irrational

Groundless

Groundless adjective - Having no basis in reason or fact.
Usage example: fears of a strike proved groundless

Irrational and groundless are semantically related in baseless topic. In some cases you can use "Irrational" instead an adjective "Groundless".

Nearby Words: ground, groundlessness

Irrational

Irrational adjective - Not using or following good reasoning.

Groundless and irrational are semantically related in unreasonable topic. Sometimes you can use "Groundless" instead an adjective "Irrational".

Nearby Words: irrationality, irrationally

Both words in one sentence

Cite this Source
Irrational and Groundless. (2016). Retrieved 2026, August 16, from https://thesaurus.plus/related/groundless/irrational
Groundless & Irrational. N.p., 2016. Web. 16 Aug. 2026. <https://thesaurus.plus/related/groundless/irrational>.
Irrational or Groundless. 2016. Accessed August 16, 2026. https://thesaurus.plus/related/groundless/irrational.
Google Ngram Viewer shows how "groundless" and "irrational" have occurred on timeline