Groundless
Groundless adjective - Having no basis in reason or fact.
Usage example: fears of a strike proved groundless
Unfounded is a synonym for groundless in baseless topic. In some cases you can use "Unfounded" instead an adjective "Groundless", when it comes to topics like true, thoughtless, justification. popular alternative
Nearby Words: ground, groundlessness
Unfounded
Unfounded adjective - Having no basis in reason or fact.
Usage example: the accusation proved to be unfounded
Groundless is a synonym for unfounded in true topic. You can use "Groundless" instead an adjective "Unfounded", if it concerns topics such as thoughtless, not based on fact. popular alternative
Nearby Word: unfoundedly
Mutual synonyms
Related pairs
Cite this Source
Unfounded and Groundless. (2016). Retrieved 2026, August 14, from https://thesaurus.plus/related/groundless/unfounded
Groundless & Unfounded. N.p., 2016. Web. 14 Aug. 2026. <https://thesaurus.plus/related/groundless/unfounded>.
Unfounded or Groundless. 2016. Accessed August 14, 2026. https://thesaurus.plus/related/groundless/unfounded.
Google Ngram Viewer shows how "groundless" and "unfounded" have occurred on timeline