Undemonstrable
Vague and undemonstrable are semantically related. In some cases you can use "Vague" instead an adjective "Undemonstrable".
Vague
Vague adjective - Not expressed in precise terms.
Undemonstrable and vague are semantically related. You can use "Undemonstrable" instead an adjective "Vague".
Mutual synonyms
Cite this Source
Vague and Undemonstrable. (2016). Retrieved 2026, August 14, from https://thesaurus.plus/related/undemonstrable/vague
Undemonstrable & Vague. N.p., 2016. Web. 14 Aug. 2026. <https://thesaurus.plus/related/undemonstrable/vague>.
Vague or Undemonstrable. 2016. Accessed August 14, 2026. https://thesaurus.plus/related/undemonstrable/vague.
Google Ngram Viewer shows how "undemonstrable" and "vague" have occurred on timeline