Groundless
Groundless adjective - Having no basis in reason or fact.
Speculative and groundless are semantically related In some cases you can use "Speculative" instead an adjective "Groundless".
Nearby Words: ground, groundlessness
Speculative
Speculative adjective - Existing only as an assumption or speculation.
Groundless and speculative are semantically related in tentative topic. Sometimes you can use "Groundless" instead an adjective "Speculative".
Mutual synonyms
Cite this Source
Speculative and Groundless. (2016). Retrieved 2026, July 22, from https://thesaurus.plus/related/groundless/speculative
Groundless & Speculative. N.p., 2016. Web. 22 Jul. 2026. <https://thesaurus.plus/related/groundless/speculative>.
Speculative or Groundless. 2016. Accessed July 22, 2026. https://thesaurus.plus/related/groundless/speculative.
Google Ngram Viewer shows how "groundless" and "speculative" have occurred on timeline