Lacking foundation
Without grounds and lacking foundation are semantically related. In some cases you can use "Without grounds" instead an adjective phrase "Lacking foundation".
Without grounds
Lacking foundation and without grounds are semantically related. You can use "Lacking foundation" instead an adjective phrase "Without grounds".
Mutual synonyms
Cite this Source
Without grounds and Lacking foundation. (2017). Retrieved 2026, July 22, from https://thesaurus.plus/related/lacking_foundation/without_grounds
Lacking foundation & Without grounds. N.p., 2017. Web. 22 Jul. 2026. <https://thesaurus.plus/related/lacking_foundation/without_grounds>.
Without grounds or Lacking foundation. 2017. Accessed July 22, 2026. https://thesaurus.plus/related/lacking_foundation/without_grounds.
Google Ngram Viewer shows how "lacking foundation" and "without grounds" have occurred on timeline