Unwarranted and Unsupported

Unwarranted

Unwarranted adjective - Having no basis in reason or fact.
Usage example: don't leap to unwarranted conclusions

Unsupported is a synonym for unwarranted. In some cases you can use "Unsupported" instead an adjective "Unwarranted".

Nearby Word: unwarrantable

Unsupported

Unsupported adjective - Having no basis in reason or fact.
Usage example: an unsupported claim that the structure was built by Vikings

Unwarranted is a synonym for unsupported in justification topic. You can use "Unwarranted" instead an adjective "Unsupported", if it concerns topics such as without substantiation.
Cite this Source
Unsupported and Unwarranted. (2016). Retrieved 2026, August 02, from https://thesaurus.plus/related/unwarranted/unsupported
Unwarranted & Unsupported. N.p., 2016. Web. 02 Aug. 2026. <https://thesaurus.plus/related/unwarranted/unsupported>.
Unsupported or Unwarranted. 2016. Accessed August 02, 2026. https://thesaurus.plus/related/unwarranted/unsupported.
Google Ngram Viewer shows how "unwarranted" and "unsupported" have occurred on timeline