Groundlessly
Without basis and groundlessly are semantically related. In some cases you can use "Without basis" instead an adverb "Groundlessly".
Without basis
Groundlessly and without basis are semantically related. You can use "Groundlessly" instead an adverb phrase "Without basis".
Cite this Source
Without basis and Groundlessly. (2016). Retrieved 2026, July 22, from https://thesaurus.plus/related/groundlessly/without_basis
Groundlessly & Without basis. N.p., 2016. Web. 22 Jul. 2026. <https://thesaurus.plus/related/groundlessly/without_basis>.
Without basis or Groundlessly. 2016. Accessed July 22, 2026. https://thesaurus.plus/related/groundlessly/without_basis.
Google Ngram Viewer shows how "groundlessly" and "without basis" have occurred on timeline