Insubstantial and Phantom

Insubstantial

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

Phantom and insubstantial are semantically related. in imaginary topic. In some cases you can use "Phantom" instead an adjective "Insubstantial".

Phantom

Phantom adjective - Not real and existing only in the imagination.

Insubstantial and phantom are semantically related. Sometimes you can use "Insubstantial" instead an adjective "Phantom".

Both words in one sentence

Cite this Source
Phantom and Insubstantial. (2016). Retrieved 2026, August 13, from https://thesaurus.plus/related/insubstantial/phantom
Insubstantial & Phantom. N.p., 2016. Web. 13 Aug. 2026. <https://thesaurus.plus/related/insubstantial/phantom>.
Phantom or Insubstantial. 2016. Accessed August 13, 2026. https://thesaurus.plus/related/insubstantial/phantom.
Google Ngram Viewer shows how "insubstantial" and "phantom" have occurred on timeline