Foundationless and Groundless

Foundationless

Foundationless adjective - Having no basis in reason or fact.
Usage example: a careful investigation proved that the charges were foundationless

Groundless and foundationless are semantically related in unwarranted topic. In some cases you can use "Groundless" instead an adjective "Foundationless", when it comes to topics like not reasonable or right, not based on fact, without substantiation.

Groundless

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

Foundationless and groundless are semantically related in justification topic. You can use "Foundationless" instead an adjective "Groundless", if it concerns topics such as baseless.

Nearby Words: ground, groundlessness
Cite this Source
Groundless and Foundationless. (2016). Retrieved 2026, August 15, from https://thesaurus.plus/related/foundationless/groundless
Foundationless & Groundless. N.p., 2016. Web. 15 Aug. 2026. <https://thesaurus.plus/related/foundationless/groundless>.
Groundless or Foundationless. 2016. Accessed August 15, 2026. https://thesaurus.plus/related/foundationless/groundless.
Google Ngram Viewer shows how "foundationless" and "groundless" have occurred on timeline