Untrue and Unsubstantiated

Untrue

Untrue adjective - Not being in agreement with what is true.

Unsubstantiated and untrue are semantically related. In some cases you can use "Unsubstantiated" instead an adjective "Untrue".

Nearby Words: untruth, untruly

Unsubstantiated

Unsubstantiated adjective - Having no basis in reason or fact.

Untrue and unsubstantiated are semantically related. Sometimes you can use "Untrue" instead an adjective "Unsubstantiated".

Nearby Word: unsubstantially
Cite this Source
Unsubstantiated and Untrue. (2016). Retrieved 2026, August 02, from https://thesaurus.plus/related/untrue/unsubstantiated
Untrue & Unsubstantiated. N.p., 2016. Web. 02 Aug. 2026. <https://thesaurus.plus/related/untrue/unsubstantiated>.
Unsubstantiated or Untrue. 2016. Accessed August 02, 2026. https://thesaurus.plus/related/untrue/unsubstantiated.
Google Ngram Viewer shows how "untrue" and "unsubstantiated" have occurred on timeline