Nebulous
Nebulous adjective - Having an often intentionally veiled or uncertain meaning.
Unsubstantial and nebulous are semantically related. In some cases you can use "Unsubstantial" instead an adjective "Nebulous".
Unsubstantial
Unsubstantial adjective - Not composed of matter.
Nebulous and unsubstantial are semantically related. Sometimes you can use "Nebulous" instead an adjective "Unsubstantial".
Nearby Word: unsubstantially
Mutual synonyms
Cite this Source
Unsubstantial and Nebulous. (2016). Retrieved 2026, August 13, from https://thesaurus.plus/related/nebulous/unsubstantial
Nebulous & Unsubstantial. N.p., 2016. Web. 13 Aug. 2026. <https://thesaurus.plus/related/nebulous/unsubstantial>.
Unsubstantial or Nebulous. 2016. Accessed August 13, 2026. https://thesaurus.plus/related/nebulous/unsubstantial.
Google Ngram Viewer shows how "nebulous" and "unsubstantial" have occurred on timeline