Insubstantial
Insubstantial adjective - Being of a material lacking in sturdiness or substance.
Not material and insubstantial are semantically related. In some cases you can use "Not material" instead an adjective "Insubstantial".
Not material
Insubstantial and not material are semantically related. You can use "Insubstantial" instead an adjective phrase "Not material".
Mutual synonyms
Cite this Source
Not material and Insubstantial. (2016). Retrieved 2026, August 03, from https://thesaurus.plus/related/insubstantial/not_material
Insubstantial & Not material. N.p., 2016. Web. 03 Aug. 2026. <https://thesaurus.plus/related/insubstantial/not_material>.
Not material or Insubstantial. 2016. Accessed August 03, 2026. https://thesaurus.plus/related/insubstantial/not_material.
Google Ngram Viewer shows how "insubstantial" and "not material" have occurred on timeline