False
False adjective - Not being in agreement with what is true.
Unsubstantial and false are semantically related in ineffectual topic. In some cases you can use "Unsubstantial" instead an adjective "False", when it comes to topics like fallacious.
Unsubstantial
Unsubstantial adjective - Not composed of matter.
False and unsubstantial are semantically related in ineffectual topic. Sometimes you can use "False" instead an adjective "Unsubstantial", if it concerns topics such as fallacious.
Nearby Word: unsubstantially
Mutual synonyms
Cite this Source
Unsubstantial and False. (2016). Retrieved 2026, August 01, from https://thesaurus.plus/related/false/unsubstantial
False & Unsubstantial. N.p., 2016. Web. 01 Aug. 2026. <https://thesaurus.plus/related/false/unsubstantial>.
Unsubstantial or False. 2016. Accessed August 01, 2026. https://thesaurus.plus/related/false/unsubstantial.
Google Ngram Viewer shows how "false" and "unsubstantial" have occurred on timeline