Groundless and Sane
Opposite meaning words
Groundless
Groundless adjective - Having no basis in reason or fact.
Usage example: fears of a strike proved groundless
Sane is an antonym for groundless.
Nearby Words: ground, groundlessness
Sane
Sane adjective - Having full use of one's mind and control over one's actions.
Groundless is an antonym for sane.
Nearby Word: sanity
Cite this Source
Sane and Groundless. (2016). Retrieved 2026, August 14, from https://thesaurus.plus/related/groundless/sane
Groundless & Sane. N.p., 2016. Web. 14 Aug. 2026. <https://thesaurus.plus/related/groundless/sane>.
Sane or Groundless. 2016. Accessed August 14, 2026. https://thesaurus.plus/related/groundless/sane.
Google Ngram Viewer shows how "groundless" and "sane" have occurred on timeline