Unsubstantial and Unconvincing

Unsubstantial

Unsubstantial adjective - Not composed of matter.

Unconvincing and unsubstantial are semantically related in likely topic. In some cases you can use "Unconvincing" instead an adjective "Unsubstantial".

Nearby Word: unsubstantially

Unconvincing

Unconvincing adjective - Too extraordinary or improbable to believe.

Unsubstantial and unconvincing are semantically related in likely topic. Sometimes you can use "Unsubstantial" instead an adjective "Unconvincing".

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