Insubstantial
Insubstantial adjective - Being of a material lacking in sturdiness or substance.
Spongy and insubstantial are semantically related. In some cases you can use "Spongy" instead an adjective "Insubstantial".
Spongy
Spongy adjective - Giving easily to the touch.
Insubstantial and spongy are semantically related. Sometimes you can use "Insubstantial" instead an adjective "Spongy".
Cite this Source
Spongy and Insubstantial. (2016). Retrieved 2026, August 01, from https://thesaurus.plus/related/insubstantial/spongy
Insubstantial & Spongy. N.p., 2016. Web. 01 Aug. 2026. <https://thesaurus.plus/related/insubstantial/spongy>.
Spongy or Insubstantial. 2016. Accessed August 01, 2026. https://thesaurus.plus/related/insubstantial/spongy.
Google Ngram Viewer shows how "insubstantial" and "spongy" have occurred on timeline