False
False adjective - Not being in agreement with what is true.
Unsubstantiated and false are semantically related. In some cases you can use "Unsubstantiated" instead an adjective "False".
Unsubstantiated
Unsubstantiated adjective - Having no basis in reason or fact.
Usage example: an unsubstantiated claim that was thrown out of court
False and unsubstantiated are semantically related. Sometimes you can use "False" instead an adjective "Unsubstantiated".
Nearby Word: unsubstantially
Mutual synonyms
Related pairs
- wrong and false
- wrong and unsubstantiated
- spurious and false
- spurious and unsubstantiated
- assumed and false
- assumed and unsubstantiated
- deceptive and false
- deceptive and unsubstantiated
- invalid and false
- invalid and unsubstantiated
- unsound and false
- unsound and unsubstantiated
- fallacious and false
- fallacious and unsubstantiated
Both words in one sentence
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However, most of the conspiracy theories end up being false, unsubstantiated, or irrelevant in all but a philosophical respect so Brown could just be sharing his outlook on the world and culture.
Source: Conspiracy Placement
Cite this Source
Unsubstantiated and False. (2016). Retrieved 2026, August 01, from https://thesaurus.plus/related/false/unsubstantiated
False & Unsubstantiated. N.p., 2016. Web. 01 Aug. 2026. <https://thesaurus.plus/related/false/unsubstantiated>.
Unsubstantiated or False. 2016. Accessed August 01, 2026. https://thesaurus.plus/related/false/unsubstantiated.
Google Ngram Viewer shows how "false" and "unsubstantiated" have occurred on timeline