Deficient and Insubstantial

Deficient

Deficient adjective - Lacking some necessary part.

Insubstantial and deficient are semantically related in scanty topic. In some cases you can use "Insubstantial" instead an adjective "Deficient".

Nearby Words: deficiency, deficit, deficiently

Insubstantial

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

Deficient and insubstantial are semantically related in scanty topic. Sometimes you can use "Deficient" instead an adjective "Insubstantial".
Cite this Source
Insubstantial and Deficient. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/deficient/insubstantial
Deficient & Insubstantial. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/deficient/insubstantial>.
Insubstantial or Deficient. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/deficient/insubstantial.
Google Ngram Viewer shows how "deficient" and "insubstantial" have occurred on timeline