Insubstantial and Unimportant

Insubstantial

Insubstantial adjective - Being of a material lacking in sturdiness or substance.

Unimportant and insubstantial are semantically related In some cases you can use "Unimportant" instead an adjective "Insubstantial".

Unimportant

Unimportant adjective - Lacking importance.

Insubstantial and unimportant are semantically related in insignificant topic. Sometimes you can use "Insubstantial" instead an adjective "Unimportant".

Nearby Words: unimportance, unimportantly
Cite this Source
Unimportant and Insubstantial. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/insubstantial/unimportant
Insubstantial & Unimportant. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/insubstantial/unimportant>.
Unimportant or Insubstantial. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/insubstantial/unimportant.
Google Ngram Viewer shows how "insubstantial" and "unimportant" have occurred on timeline